content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Trigometric Identity Help
April 14th 2008, 09:23 PM #1
Newbie
Joined
Apr 2008
Posts
21
Trigometric Identity Help
Just started learning about some Identities in class and quite haven't got the hang of it yet. Some Help for the following is much appreciated.
4sin(x/4)cos(x/4)cos(x/2)=sinx
tan2x+s... | 4 | [
-0.05712890625,
-0.01953125,
0.03076171875,
0.006072998046875,
0.018310546875,
-0.00156402587890625,
0.005462646484375,
0.0240478515625,
0.054931640625,
-0.029052734375,
0.05322265625,
-0.07421875,
-0.00921630859375,
0.0458984375,
0.00860595703125,
0.07763671875,
0.0458984375,
0.05... | 33,500 | 33500 | |
-Stein Matrix Equation
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 824641, 8 pages
http://dx.doi.org/10.1155/2013/824641
Research Article
A Note on the -Stein Matrix Equation
Center for General Education, National Formosa University, Huwei 632, Taiwan
Received 16 May 2013; Revised 16 July 2013; Acc... | 5 | [
-0.08154296875,
0.0849609375,
-0.033203125,
-0.0125732421875,
0.02392578125,
0.0927734375,
-0.0179443359375,
0.00189971923828125,
0.08544921875,
0.08544921875,
0.033935546875,
0.09423828125,
-0.047119140625,
0.019775390625,
-0.034912109375,
0.01214599609375,
-0.041259765625,
-0.021... | 33,501 | 33501 | |
Elementary derivation of the Lense-Thirring precession
3related to the electric current density
j
, creates a dipole magnetic field
H
=3
n
(
n
·
µ
)
−
µr
3
.
Equations (1) indicate that the gravitational analog of the electric current density is
−
4
Gρv
. Therefore the gravita-tional anal... | 4 | [
-0.00128173828125,
0.01080322265625,
-0.0419921875,
-0.10791015625,
-0.0015106201171875,
0.043212890625,
0.049072265625,
0.04443359375,
-0.033203125,
-0.0019683837890625,
0.05078125,
-0.0169677734375,
-0.06884765625,
-0.0908203125,
0.06787109375,
-0.036376953125,
-0.05419921875,
-0... | 33,502 | 33502 | |
Probability: Finding n and p.
December 2nd 2011, 10:03 AM
chutiya
Probability: Finding n and p.
I am preparing for my finals and came across this question:
$\text{Let p be the probability that the vaccine is a success in any patient.}$
$\text{Find the sample size n and p required to be 95 percent assure... | 4 | [
0.034912109375,
0.072265625,
-0.021728515625,
-0.0693359375,
-0.0216064453125,
-0.010986328125,
0.1259765625,
0.11962890625,
0.0067138671875,
0.033935546875,
0.055419921875,
0.02392578125,
0.07470703125,
0.03857421875,
0.008544921875,
-0.018310546875,
0.039306640625,
-0.04809570312... | 33,503 | 33503 | |
MathGroup Archive: November 2006 [00615]
[Date Index] [Thread Index] [Author Index]
Re: Why does this lead to an answer with complex numbers?
• To: mathgroup at smc.vnet.net
• Subject: [mg71465] Re: Why does this lead to an answer with ... | 5 | [
-0.09375,
0.09521484375,
0.0458984375,
0.103515625,
0.044189453125,
-0.0238037109375,
0.0458984375,
0.03857421875,
0.019287109375,
0.013671875,
0.0556640625,
-0.0181884765625,
0.00701904296875,
0.04833984375,
0.00152587890625,
-0.041015625,
0.03125,
-0.016357421875,
-0.1147460937... | 33,504 | 33504 | |
Find Slope of Each Tangent
October 28th 2013, 07:10 PM #1
Find Slope of Each Tangent
From the point (0,-5), tangent lines are drawn to the circle
(x-3)^2 + y^2 = 4. Find the slope of each tangent. I want the steps only.
Thank you.
Re: Find Slope of Each Tangent
Hey nycmath.
We can't you the com... | 4 | [
-0.0380859375,
-0.0130615234375,
0.00469970703125,
0.0076904296875,
0.006134033203125,
0.0250244140625,
-0.056884765625,
0.040283203125,
-0.0125732421875,
0.0230712890625,
0.0128173828125,
-0.0169677734375,
0.0126953125,
0.07470703125,
0.03564453125,
0.08984375,
-0.103515625,
0.018... | 33,505 | 33505 | |
Realizability of irreducible representations of dihedral groups
up vote 9 down vote favorite
2
Consider a dihedral group of degree n and order 2n. Its two-dimensional irreducible representations can be realized over the field $\mathbb{Q}(\cos(2\pi/n),\sin(2\pi/n))$, with the usual action by
rotations and reflections. ... | 5 | [
-0.0595703125,
-0.0294189453125,
-0.005126953125,
-0.0235595703125,
-0.0189208984375,
0.0810546875,
-0.07080078125,
-0.0361328125,
0.0849609375,
-0.1044921875,
-0.02392578125,
0.024658203125,
-0.0634765625,
0.04248046875,
-0.00567626953125,
0.00665283203125,
0.00101470947265625,
-0... | 33,506 | 33506 | |
Trouble with tests of divergence... Help me see the bigger picture!
September 16th 2013, 06:42 AM #1
Newbie
Joined
Apr 2013
From
United States
Posts
22
I am having trouble with a couple of convergence/divergence tests for series. So far in class we've talked about the following:
□ nth-term test
... | 5 | [
-0.0771484375,
-0.0400390625,
0.0142822265625,
0.0498046875,
0.05029296875,
-0.072265625,
-0.08935546875,
0.0033111572265625,
0.05712890625,
-0.0537109375,
-0.01544189453125,
-0.005706787109375,
0.0322265625,
0.04638671875,
-0.039794921875,
-0.107421875,
0.01385498046875,
0.0005531... | 33,507 | 33507 | |
Question - Relationship Between the Roots of a Cubic Equation and its Coefficients.
May 14th 2013, 10:32 AM
Qwob
Question - Relationship Between the Roots of a Cubic Equation and its Coefficients.
My problem comes from the Further Pure Maths 2 textbook from AQA (UK exam board - A-Level).
Page 28 of the text... | 4 | [
-0.0673828125,
-0.00921630859375,
-0.04931640625,
0.06884765625,
-0.0311279296875,
0.0269775390625,
0.01373291015625,
0.019287109375,
0.06005859375,
0.006317138671875,
0.043212890625,
-0.0208740234375,
0.03759765625,
0.0126953125,
0.01263427734375,
0.0986328125,
-0.07958984375,
0.0... | 33,508 | 33508 | |
Problem with integration
March 29th 2009, 07:53 AM #1
Junior Member
Joined
Oct 2008
Posts
69
Problem with integration
Hello, I am currently working on a problem that requires the integration of an expression that I can't seem to figure out. The problem goes:
Integral from 0 to 2 of: (((t^2)+2t+2)/((... | 5 | [
0.03466796875,
0.02734375,
0.056640625,
0.0634765625,
0.017333984375,
-0.040771484375,
-0.045654296875,
-0.03564453125,
-0.015625,
-0.0032501220703125,
0.057373046875,
-0.053955078125,
-0.038330078125,
0.08740234375,
-0.07763671875,
0.0191650390625,
0.0225830078125,
0.0052795410156... | 33,509 | 33509 | |
Statistics Question (Probability)
May 18th 2007, 08:01 AM
margaritas
Statistics Question (Probability)
Hi I dont really get the following so thanks if anyone could help:
A biased cubical die has faces numbered 1, 2, 3, 4, 5, 6 and X denotes the number obtained when the die is tossed once with probabilities... | 5 | [
0.0712890625,
0.032958984375,
0.0732421875,
-0.031005859375,
0.030029296875,
0.034912109375,
0.1240234375,
-0.0019683837890625,
0.07275390625,
0.006011962890625,
0.0103759765625,
-0.057373046875,
0.05908203125,
-0.0076904296875,
-0.06396484375,
-0.001129150390625,
-0.00439453125,
-... | 33,510 | 33510 | |
proof of similar matrices
June 29th 2011, 11:00 AM #1
MHF Contributor
Joined
Nov 2008
Posts
1,401
proof of similar matrices
A is a 2x2 matrices
$A^2=-I$
and there is a transformation for which $T^2=-I$
there is a basis B={v,T(v)} for which
$[T]_B$=
(0 1)
(-1 0)
prove that A i... | 5 | [
-0.036376953125,
0.0361328125,
-0.0634765625,
-0.01141357421875,
-0.07470703125,
-0.040771484375,
0.05908203125,
-0.0263671875,
0.0162353515625,
-0.10888671875,
0.033935546875,
-0.0263671875,
0.0166015625,
0.055419921875,
-0.04296875,
-0.043701171875,
0.02294921875,
-0.060302734375... | 33,511 | 33511 | |
Mathematical Induction
July 16th 2007, 04:37 PM #1
Junior Member
Joined
Jun 2007
Posts
40
Mathematical Induction
What is wrong with this "proof"?
"Theorem" For every positive integer n, $\sum_{i=1}^n i = (n+1/2)^2/2$
Basic step : The formula is true for n = 1
Inductive Step: Suppose that $... | 4 | [
-0.08740234375,
0.080078125,
0.12109375,
0.06982421875,
0.060791015625,
-0.06787109375,
-0.04052734375,
0.0556640625,
0.045166015625,
-0.0069580078125,
-0.091796875,
-0.03271484375,
0.050537109375,
0.035400390625,
-0.06884765625,
-0.00177764892578125,
0.078125,
0.045166015625,
0.... | 33,512 | 33512 | |
the encyclopedic entry of infinitude
In
number theory
,
Hillel Furstenberg's proof of the infinitude of primes
is a celebrated
topological proof
that the
integers
contain
infinitely
many
prime numbers
. When examined closely, the proof is less a statement about topology than a statement about certain proper... | 4 | [
-0.052978515625,
0.0400390625,
-0.046142578125,
0.039794921875,
0.0341796875,
0.054931640625,
0.0196533203125,
0.047607421875,
0.0274658203125,
-0.053466796875,
-0.052490234375,
0.0458984375,
0.0654296875,
-0.052978515625,
-0.03125,
-0.047607421875,
-0.0291748046875,
-0.05493164062... | 33,513 | 33513 | |
Math Help
November 3rd 2006, 10:09 PM #1
Junior Member
Joined
Oct 2006
Posts
71
finace
You need $10,000 in 8 years.
i) What amount should you deposit at the end of each quarter at 6% per annum,
compounded quarterly, so that you will have the required $10,000?
ii) What quarterly deposit is re... | 4 | [
0.021484375,
0.10498046875,
0.0142822265625,
-0.037109375,
-0.040771484375,
-0.0106201171875,
0.015380859375,
0.07373046875,
-0.05517578125,
0.052490234375,
-0.0106201171875,
-0.08935546875,
0.00311279296875,
0.068359375,
0.00469970703125,
0.030029296875,
-0.050537109375,
-0.007873... | 33,514 | 33514 | |
Using Parameterization to find Speed
November 13th 2009, 07:38 PM #1
Member
Joined
Jul 2007
Posts
75
A particle moves with its position given by x=cos6t and y=sint , where positions are given in feet from the origin and time t is in seconds.
Find the speed of the particle.
I took the derivative o... | 5 | [
0.01544189453125,
-0.0341796875,
-0.031005859375,
0.010498046875,
-0.01519775390625,
0.017578125,
-0.09130859375,
0.0771484375,
0.000270843505859375,
0.0096435546875,
0.09375,
0.040771484375,
-0.03271484375,
0.00848388671875,
-0.01470947265625,
0.0478515625,
-0.0306396484375,
0.012... | 33,515 | 33515 | |
Proposition 9
If the side of the hexagon and that of the decagon inscribed in the same circle are added together, then the whole straight line has been cut in extreme and mean ratio, and its greater segment is the
side of the hexagon.
Let ABC be a circle, and of the figures inscribed in the circle ABC let BC be the s... | 4 | [
-0.0184326171875,
0.11572265625,
0.020751953125,
-0.0291748046875,
-0.04296875,
0.040283203125,
0.006134033203125,
0.08984375,
0.042236328125,
-0.0179443359375,
0.00994873046875,
-0.08642578125,
0.0255126953125,
0.00469970703125,
0.04736328125,
-0.09814453125,
-0.0233154296875,
0.0... | 33,516 | 33516 | |
Basic Econometrics in R and SAS
November 27, 2011
By Matt Bogard
Regression Basics
y= b0 + b1 *X ‘regression line we want to fit’
The method of least squares minimizes the squared distance between the line ‘y’ and
individual data observations yi.
That is minimize: ∑ e[i]^2 = ∑ (y[i ]- b[0] - b[1] X[i] )^2 with... | 5 | [
-0.041748046875,
0.01190185546875,
0.0277099609375,
0.0034942626953125,
0.005889892578125,
0.05712890625,
0.0257568359375,
0.03662109375,
0.056884765625,
-0.028076171875,
0.0294189453125,
-0.03515625,
0.044677734375,
-0.0546875,
-0.03759765625,
0.12158203125,
-0.017578125,
-0.06738... | 33,517 | 33517 | |
the encyclopedic entry of hydrodynamics
In
hydrodynamics
, a
plume
is a column of one fluid moving through another. Several effects control the motion of the fluid, including momentum, buoyancy and density difference. When momentum effects are more important than
density differences and buoyancy effects, the plume ... | 4 | [
-0.000911712646484375,
-0.031982421875,
0.0301513671875,
0.0220947265625,
0.031494140625,
-0.00323486328125,
-0.021484375,
-0.0625,
0.10791015625,
-0.09375,
-0.034423828125,
-0.00162506103515625,
-0.048583984375,
-0.009521484375,
0.0299072265625,
0.00118255615234375,
-0.01416015625,
... | 33,518 | 33518 | |
simultaneous system
May 7th 2008, 09:18 AM #1
Newbie
Joined
May 2008
Posts
1
Hi everyone, new to this site! I have a homework question that I am stumped on. I am trying to solve the system by elimation.
x + y = 5
and
x - y = 1
I can solve by substitution, but by elimation confuses me. Ca... | 4 | [
-0.05859375,
-0.042724609375,
0.01422119140625,
-0.020751953125,
0.00738525390625,
0.006683349609375,
0.029541015625,
-0.027587890625,
-0.0213623046875,
0.01226806640625,
0.059814453125,
0.0341796875,
0.04296875,
-0.0133056640625,
-0.006866455078125,
0.09521484375,
-0.103515625,
-0... | 33,519 | 33519 | |
Dedekind Cuts?
October 31st 2007, 10:41 AM #1
Newbie
Joined
Oct 2007
Posts
2
Dedekind Cuts?
Given a real number a, define S≡{x|x in Q, x < a}. Prove that a = sup S using dedekind cuts.
Here is a summary of the proof I used:
If ∃ B|B is an upper bound of S and B < a
then (B+a)/2 is not in S.... | 4 | [
-0.09423828125,
0.05908203125,
0.035888671875,
-0.0859375,
0.00109100341796875,
0.0439453125,
0.01116943359375,
0.04443359375,
0.000335693359375,
0.0234375,
-0.01153564453125,
0.024169921875,
0.037109375,
-0.048095703125,
-0.009033203125,
-0.0201416015625,
0.057373046875,
0.0116577... | 33,520 | 33520 | |
Sum of positive divisor
April 14th 2008, 08:30 PM #1
Junior Member
Joined
Mar 2008
Posts
33
Sum of positive divisor
Need help on the following:
Show a positive integer $n$ is composite iff $\sigma(n) > n + \sqrt{n}$.
$\sigma(n)$ denote the sum of positive divisor of n.
Thank you for your he... | 4 | [
-0.0233154296875,
-0.041259765625,
0.08935546875,
-0.0223388671875,
0.03955078125,
0.00185394287109375,
0.029541015625,
0.10205078125,
-0.03369140625,
-0.013916015625,
-0.08349609375,
0.08154296875,
0.0625,
-0.01556396484375,
-0.0458984375,
-0.0196533203125,
0.040771484375,
0.00312... | 33,521 | 33521 | |
differential equation problem
March 20th 2009, 04:25 AM #1
Newbie
Joined
Feb 2009
Posts
22
I almost have the answer but I can't quite get there.
Differential equation is
dH/dt= (40-H)^2/100
I solved it through here:
H= 40 - 200/(2t + 5)
However, when I plug in a value t=5 I get the... | 5 | [
-0.039794921875,
0.059814453125,
0.1064453125,
-0.00084686279296875,
0.0029296875,
-0.04736328125,
-0.11083984375,
0.07763671875,
-0.0079345703125,
0.0693359375,
0.10009765625,
-0.057373046875,
0.0458984375,
0.06640625,
-0.03857421875,
0.051025390625,
-0.0390625,
0.009765625,
-0.... | 33,522 | 33522 | |
Polynomial Rings - Z5[X]/<p(x)>
April 5th 2013, 03:51 PM #1
Polynomial Rings - Z5[X]/<p(x)>
Compute the multiplicative inverse of $a(x) = \overline{x^2 + x + 1}$ in $\mathbb{Z}_5/<p(x)>$
where $p(x) = x^3 + x^2 + x + 1 = (x^2 + 1)(x +1)$.
Re: Polynomial Rings - Z5[X]/<p(x)>
Because $x^3+x^2+x+1=0$, we... | 5 | [
-0.10791015625,
0.03564453125,
0.049072265625,
0.06591796875,
0.04248046875,
-0.11767578125,
-0.000911712646484375,
-0.0089111328125,
-0.01055908203125,
-0.06591796875,
-0.0186767578125,
0.0137939453125,
0.057373046875,
-0.052001953125,
-0.09326171875,
-0.01611328125,
0.028076171875,... | 33,523 | 33523 | |
Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Does This Really Work? Tire Balancing Beads
Take a baton, it has a heavy and light end. place it on a finger. When it is balanced the light end is farther from your finger and the heavy end is closer. That demonstrates the center of Rotational
balance, not... | 4 | [
-0.04638671875,
-0.07763671875,
-0.08349609375,
-0.02392578125,
-0.033203125,
-0.043212890625,
-0.0177001953125,
0.02001953125,
0.02490234375,
0.016357421875,
0.050537109375,
0.0869140625,
0.019775390625,
0.051025390625,
0.01507568359375,
0.05029296875,
0.007110595703125,
0.1196289... | 33,524 | 33524 | |
Series and term of series • /r/learnmath
Series and term of series (self.learnmath)
submitted by nodiaque
sorry, this has been archived and can no longer be voted on
Hello everyone,
I'm having a headache figuring the term of a series. I know what I must do, but the algorithm I must evaluate to figure out the ter... | 5 | [
-0.0673828125,
0.047119140625,
0.05908203125,
0.02490234375,
0.0123291015625,
-0.049072265625,
0.059814453125,
-0.03369140625,
0.01458740234375,
-0.03515625,
0.007537841796875,
-0.037353515625,
0.00115966796875,
-0.0130615234375,
-0.0712890625,
0.040771484375,
0.036376953125,
0.011... | 33,525 | 33525 | |
Challenging problem!!!!!!! Really difficult
January 2nd 2013, 09:48 AM #1
Newbie
Joined
Dec 2012
From
Pakistan
Posts
8
Challenging problem!!!!!!! Really difficult
A person is trapped in a dark cave with three ways out. One of them leads to safety after 2 hours of travel while the other two would retu... | 5 | [
0.056884765625,
0.0206298828125,
0.033935546875,
0.016845703125,
0.0294189453125,
0.02880859375,
0.0196533203125,
-0.052001953125,
-0.0252685546875,
0.083984375,
-0.0260009765625,
-0.06298828125,
0.0054931640625,
0.09814453125,
0.0279541015625,
0.048095703125,
-0.058349609375,
0.03... | 33,526 | 33526 | |
Similar figure problem
August 19th 2012, 06:00 PM
william24
Similar figure problem
Find the unknown in each of the following pairs of similar figures.
Attachment 24550
My solution:
Area of DEF = 4^2
Area of ABC = 6
6x4cm^2/Area of ABC^ =4/6x4/6
Is this right? What is the correct answer?
... | 4 | [
0.052490234375,
0.0294189453125,
-0.01385498046875,
-0.01806640625,
-0.0517578125,
-0.0322265625,
-0.09619140625,
0.0537109375,
0.01214599609375,
-0.0010833740234375,
0.010009765625,
-0.056396484375,
-0.0157470703125,
0.076171875,
0.055908203125,
0.01483154296875,
-0.051513671875,
... | 33,527 | 33527 | |
5. Multiplication and Division of Radicals
Later, on this page...
When multiplying expressions containing radicals, we use the following law, along with normal procedures of algebraic multiplication.
`root(n)axxroot(n)b=root(n)(ab)`
Example 1
(a) `sqrt5sqrt2`
(b) `sqrt33sqrt3`
Example 2
(a) `root(3)6root(3)... | 4 | [
-0.0439453125,
-0.02734375,
-0.03662109375,
0.0654296875,
-0.0419921875,
-0.040283203125,
-0.0810546875,
-0.0419921875,
0.0771484375,
-0.002288818359375,
0.032470703125,
0.031005859375,
-0.00933837890625,
0.10546875,
0.01190185546875,
0.080078125,
-0.078125,
0.07080078125,
-0.150... | 33,528 | 33528 | |
Proof - What conditions are necessary on q for it to be a divisor of a^p+1 if...
March 16th 2009, 01:06 PM #1
Member
Joined
Mar 2009
Posts
76
What conditions are necessary on q for it to be a divisor of a^p+1 if p and q are both prime?
Last edited by Jhevon; March 18th 2009 at 03:00 PM. Reason: Resto... | 5 | [
-0.05517578125,
0.033447265625,
0.087890625,
0.028564453125,
0.060546875,
0.048583984375,
0.032958984375,
-0.009765625,
0.058837890625,
0.040771484375,
0.046630859375,
0.0208740234375,
0.033935546875,
0.1142578125,
-0.013671875,
-0.0341796875,
-0.09033203125,
0.00592041015625,
-0... | 33,529 | 33529 | |
d'alembert solution Help
May 14th 2010, 04:46 PM #1
Hi I have been trying to figure out how this method works.
Searched the forum but got no results. Have attached an example Im trying to do. If someone could show me it would be great.
Or even show me a similar example worked out.
Thanks in advance!... | 5 | [
-0.048828125,
0.0830078125,
0.07470703125,
-0.0439453125,
-0.008056640625,
0.0150146484375,
0.043701171875,
0.006011962890625,
-0.006317138671875,
-0.0016632080078125,
0.111328125,
-0.03515625,
-0.0057373046875,
-0.002593994140625,
-0.034912109375,
-0.059326171875,
0.008544921875,
... | 33,530 | 33530 | |
I need help with coordinate geometry! • /r/cheatatmathhomework
I need help with coordinate geometry! (self.cheatatmathhomework)
submitted by Player--1
sorry, this has been archived and can no longer be voted on
So here's the question.
The distance of point X (k,2) from the line y=x+4 is four. Give the possible valu... | 4 | [
0.0166015625,
0.042236328125,
-0.078125,
-0.130859375,
-0.035400390625,
-0.0003032684326171875,
0.04150390625,
0.0242919921875,
0.0137939453125,
-0.030029296875,
0.0595703125,
-0.030517578125,
-0.031494140625,
0.078125,
-0.04150390625,
0.0869140625,
0.0218505859375,
0.037841796875,... | 33,531 | 33531 | |
Llimits for a nested integral
March 2nd 2009, 09:27 PM #1
Member
Joined
Oct 2007
Posts
159
Llimits for a nested integral
I need to set up the double integral (but not solve) that applies to:
For the volume of the solid below the graph of f(x,y) = 25 - x^2 - y^2 and above the plane z = 16
Would ... | 4 | [
-0.0235595703125,
0.020751953125,
0.041015625,
-0.158203125,
0.04296875,
-0.1259765625,
-0.07177734375,
0.076171875,
-0.06787109375,
0.0196533203125,
-0.06640625,
0.0118408203125,
-0.00167083740234375,
0.05908203125,
0.006622314453125,
0.06640625,
0.01031494140625,
-0.0308837890625... | 33,532 | 33532 | |
Proabability problem
January 6th 2008, 10:40 AM #1
Newbie
Joined
Jan 2008
Posts
5
Hi all, I`ve got an exam coming up in just over a week which will contain a question like this one.
From the attached Venn diagram work out
1) Determine P(A) and P(B)
2) Determine P(B|A) and P(A|B)
3) Deter... | 4 | [
0.00152587890625,
0.0576171875,
0.0361328125,
-0.03369140625,
0.0546875,
0.064453125,
0.064453125,
-0.02001953125,
-0.02294921875,
0.05810546875,
0.06591796875,
-0.06640625,
0.001708984375,
0.01806640625,
0.0252685546875,
0.0732421875,
-0.05810546875,
-0.0458984375,
-0.14453125,
... | 33,533 | 33533 | |
Two matrix determinant questions
January 28th 2010, 06:56 AM
Fwahm
Two matrix determinant questions
I have two problems I've been assigned to assist in studying for an exam, but I can't figure out how to proceed. The first one is:
Prove the following:
|1 a bc| --|1 a a^2|----------------- |1 a a^2|
... | 5 | [
-0.0712890625,
0.03466796875,
-0.06298828125,
-0.03759765625,
-0.018310546875,
-0.01068115234375,
0.041748046875,
-0.1201171875,
-0.0011138916015625,
0.00341796875,
-0.0130615234375,
-0.04833984375,
0.07373046875,
0.04541015625,
-0.09375,
0.07275390625,
-0.0019378662109375,
-0.0654... | 33,534 | 33534 | |
Contractibility of Finite Topological Space
February 26th 2009, 05:43 PM
joeyjoejoe
Contractibility of Finite Topological Space
I'm looking for a way to show that a finite topological space with some prescribed topology is a contractible space. I understand the definition well enough: I need two continuous funct... | 5 | [
-0.0279541015625,
-0.01495361328125,
-0.037841796875,
0.02392578125,
-0.11328125,
0.09326171875,
0.0927734375,
-0.03662109375,
0.01220703125,
0.03515625,
-0.0247802734375,
0.01507568359375,
0.04736328125,
-0.00634765625,
0.058837890625,
0.058837890625,
-0.025146484375,
-0.040039062... | 33,535 | 33535 | |
8. Orbits
Astronomy 626: Spring 1997
In n space dimensions, many orbits can formally be decomposed into n independent periodic motions. Such regular orbits may be represented as winding paths on an n-dimensional torus. On the other
hand, irregular or stochastic orbits defy any such representation; such orbits may wan... | 4 | [
-0.0732421875,
-0.03515625,
0.0233154296875,
0.057861328125,
-0.033935546875,
0.062255859375,
-0.0274658203125,
-0.03173828125,
0.058349609375,
-0.0194091796875,
0.01806640625,
0.042724609375,
-0.032470703125,
-0.045654296875,
-0.03173828125,
-0.07666015625,
-0.051025390625,
0.0551... | 33,536 | 33536 | |
Rational Expressions and Radical Expressions
July 9th 2009, 07:33 PM #1
Junior Member
Joined
Jul 2009
Posts
43
Rational Expressions and Radical Expressions
I just want to check my answers with someone because im not sure i am correct...
1. 12u cubed/7v to the fifth * 14v squared/3u =
8 u squared... | 4 | [
-0.0242919921875,
0.06787109375,
0.01153564453125,
0.042724609375,
-0.023193359375,
-0.0225830078125,
-0.06787109375,
-0.0498046875,
0.01104736328125,
-0.0361328125,
-0.00185394287109375,
-0.056884765625,
-0.0206298828125,
0.11279296875,
-0.03662109375,
-0.00122833251953125,
-0.01214... | 33,537 | 33537 | |
Brazilian Journal of Chemical Engineering
Services on Demand
Article
Indicators
Related links
Share
Print version ISSN 0104-6632
Braz. J. Chem. Eng. vol.29 no.3 São Paulo July/Sept. 2012
http://dx.doi.org/10.1590/S0104-66322012000300014
... | 4 | [
-0.09326171875,
-0.06640625,
-0.00634765625,
0.020751953125,
0.03466796875,
-0.004547119140625,
-0.046875,
0.050048828125,
0.07470703125,
-0.0024871826171875,
-0.07373046875,
-0.109375,
0.060546875,
-0.0001373291015625,
0.042236328125,
-0.07080078125,
0.0037384033203125,
-0.1079101... | 33,538 | 33538 | |
Help Natural Logs
Hi, please help solve the equation f'(x) = 0 f(x)= (ln x +2x) ^ 1/3 thanks
thelazyman Given the function, $f(x)=(\ln x+2x)^{1/3}$ Then, by the Generalized Exponent Rule, $f'(x)=(1/3)(1/x+2)(\ln x+2x)^{-2/3}$ But $f'(x)=0$ Thus, $(1/3)(1/x+2)(\ln x+2x)^{-2/3}=0$ thus, $(1/
x+2)=0$ because $(\ln x+2x)^... | 5 | [
-0.01422119140625,
-0.125,
0.01025390625,
-0.01708984375,
0.020751953125,
-0.03125,
0.0029449462890625,
0.051025390625,
0.042724609375,
0.07470703125,
0.154296875,
-0.08984375,
0.0255126953125,
0.0291748046875,
0.0252685546875,
0.04638671875,
-0.1318359375,
-0.038330078125,
-0.01... | 33,539 | 33539 | |
Math Help - Calculus - Construction of the Riemann Integral
Technical Tutoring Home · Site Index · Advanced Books · Speed Arithmetic · Math Index · Algebra Index · Calculus Index · Trig Index · Chemistry Index · Gift Shop · Harry Potter DVDs, Videos, Books,
Audio CDs and Cassettes · Lord of the Rings DVDs, Videos, B... | 5 | [
-0.038330078125,
0.00506591796875,
0.00836181640625,
-0.004974365234375,
-0.056396484375,
-0.07421875,
0.01165771484375,
0.11767578125,
-0.0162353515625,
0.040771484375,
-0.00921630859375,
0.0301513671875,
0.041748046875,
0.020263671875,
-0.031982421875,
-0.0023956298828125,
-0.02636... | 33,540 | 33540 | |
Math Help
March 6th 2010, 11:13 PM #1
Member
Joined
May 2009
Posts
86
order and degree
OKay, this is really a trivial doubt. However i need a clarification.
Find the order and degree of the following:
a) y'' + (1 + (y')^3 )^(1/2) = 0 where y' is the first derivative and y'' is the second deriva... | 4 | [
0.0218505859375,
-0.0267333984375,
0.04296875,
0.045166015625,
-0.030517578125,
-0.00144195556640625,
0.0106201171875,
-0.021484375,
0.045166015625,
0.0125732421875,
0.09130859375,
0.03173828125,
0.00933837890625,
-0.0198974609375,
0.01385498046875,
0.030517578125,
-0.0869140625,
-... | 33,541 | 33541 | |
Solving trigonometric equations.
December 30th 2011, 04:27 PM #1
Solving trigonometric equations.
Hello
The question was:
Solve the following on the interval $0\leq x \leq 2\pi$. Give your answers to 3 sf.
$2\cos\theta - \sin\theta = 1$
I was able to solve this using the harmonic form, express... | 5 | [
-0.0419921875,
-0.017578125,
-0.00439453125,
-0.00885009765625,
-0.07373046875,
0.052490234375,
-0.044677734375,
0.042724609375,
0.044677734375,
-0.006103515625,
-0.036865234375,
-0.0458984375,
0.0079345703125,
0.060791015625,
0.1484375,
-0.0189208984375,
-0.0294189453125,
0.028076... | 33,542 | 33542 | |
Maximal Ideals
January 27th 2011, 06:45 AM
mulaosmanovicben
Maximal Ideals
Prove <x^2+1> is maximal in R[x]
R[x] = {all polynomials with real coefficients}
<x^2+1> = {f(x)*(x^2+1) ; f(x) is from R[x]}
Could you guys give me some hints? I am not really sure how to even start this. This exact proble... | 5 | [
0.005218505859375,
0.07568359375,
0.01318359375,
0.007354736328125,
0.006072998046875,
-0.0439453125,
0.032470703125,
0.042236328125,
-0.0011444091796875,
-0.0888671875,
-0.0537109375,
-0.02294921875,
0.0712890625,
-0.0003337860107421875,
-0.078125,
-0.005950927734375,
0.058349609375... | 33,543 | 33543 | |
Exact and inexact differentials
Next: Statistical thermodynamics Up: Heat and work Previous: Quasi-static processes
Exact and inexact differentials
In our investigation of heat and work we have come across various infinitesimal objects such as
Consider the purely mathematical problem where
which can also be w... | 4 | [
-0.12890625,
-0.0224609375,
0.0771484375,
0.051025390625,
0.0732421875,
-0.054931640625,
-0.013427734375,
0.035888671875,
0.09814453125,
0.09130859375,
-0.00787353515625,
0.00823974609375,
0.006805419921875,
0.028564453125,
0.0291748046875,
-0.1259765625,
-0.029541015625,
0.0371093... | 33,544 | 33544 | |
volume of parallelepiped w/ adjacent edges
February 23rd 2009, 11:29 PM
rcmango
volume of parallelepiped w/ adjacent edges
P(2, 0, -1), Q(4, 1, 0), R(3, -1, 1), S(2, -2, 2)
must find the volume of the parallelepiped with adjacent edges PQ PR and PS.
I tried setting it up and i still didn't come out wit... | 4 | [
-0.0003910064697265625,
0.044921875,
-0.0634765625,
-0.111328125,
-0.0263671875,
0.01470947265625,
-0.01251220703125,
0.047119140625,
0.052490234375,
0.03076171875,
-0.03955078125,
-0.051513671875,
0.04052734375,
0.0830078125,
-0.0546875,
-0.039306640625,
-0.019287109375,
-0.027587... | 33,545 | 33545 | |
Physics(Please check, thanks)
Posted by Hannah on Wednesday, June 20, 2012 at 6:13pm.
A football player kicks a ball with a speed of 25m/s at an angle of 40 degrees relative to the horizontal. Ignore air resistance.
1) What is the ball's range?
R= V0^2 sin Q / g Is this the correct equation to use?
• Physics(Plea... | 4 | [
0.00604248046875,
0.078125,
0.00112152099609375,
-0.0390625,
0.018310546875,
0.04296875,
-0.06787109375,
0.12060546875,
-0.0177001953125,
0.07568359375,
0.0703125,
-0.0419921875,
-0.03466796875,
0.0810546875,
0.038330078125,
0.044677734375,
0.009521484375,
-0.058349609375,
-0.096... | 33,546 | 33546 | |
Help with rearranging formula
June 11th 2009, 10:41 AM
Tino1210
Help with rearranging formula
Hello, Im looking for some guidance in rearranging formula. Need to ask if what I'm doing is right?
1) 4 (^x+1) = 6 ^0.5x , find x
ln4 (^x+1) = ln6(^0.5x)
x+1(ln4) = 0.5xln6
1.38x +1.38 = 0.895x
1.3... | 5 | [
0.0098876953125,
0.043701171875,
0.0380859375,
-0.05322265625,
0.0223388671875,
0.00885009765625,
0.0155029296875,
0.06591796875,
0.01177978515625,
0.06982421875,
0.11962890625,
-0.06982421875,
0.036865234375,
0.0703125,
-0.031982421875,
0.046875,
-0.107421875,
-0.03076171875,
-0... | 33,547 | 33547 | |
Liquidity Measurement Ratios: Cash Conversion Cycle | Investopedia
By Richard Loth (Contact | Biography)
This liquidity metric expresses the length of time (in days) that a company uses to sell inventory, collect receivables and pay its accounts payable. The cash conversion cycle (CCC) measures the
number of days a com... | 4 | [
-0.037109375,
-0.0128173828125,
-0.050537109375,
0.0235595703125,
-0.038818359375,
-0.08740234375,
0.0022430419921875,
0.08154296875,
0.023193359375,
-0.0111083984375,
0.0037841796875,
-0.0634765625,
-0.050537109375,
0.01806640625,
0.005157470703125,
-0.07177734375,
-0.0179443359375,... | 33,548 | 33548 | |
Maximization Problem Help
March 17th 2008, 04:10 PM
lionpants
Maximization Problem Help
Here's my question...
A Norman window, one that is formed by placing a semicircle on top of a rectangle, still remains a popular architectural feature. If the perimeter of the window is 300cm, find the radius of the
... | 4 | [
0.0322265625,
0.00347900390625,
-0.03515625,
-0.0224609375,
0.01116943359375,
-0.033203125,
0.01104736328125,
0.052001953125,
-0.039306640625,
-0.000823974609375,
-0.040283203125,
-0.0155029296875,
0.068359375,
0.05224609375,
0.06591796875,
0.05517578125,
-0.0084228515625,
0.010864... | 33,549 | 33549 | |
how to integrate this??
April 5th 2009, 12:54 PM #1
Junior Member
Joined
Oct 2008
Posts
29
how to integrate this??
im trying to integrate the function $x(1-x)$ which is $x-x^2$. if I make u=x^2 or u=x-x^2 for u-substitution it never turns out right though.. please someone help
u-substitution?! this ... | 4 | [
-0.00653076171875,
0.09130859375,
0.053955078125,
0.05712890625,
0.0111083984375,
-0.060302734375,
-0.07080078125,
-0.0341796875,
-0.033203125,
-0.045166015625,
-0.029296875,
-0.04248046875,
-0.01708984375,
0.00286865234375,
-0.041748046875,
-0.02734375,
0.052978515625,
-0.00885009... | 33,550 | 33550 | |
Miscellaneous Theorem in Linear Algebra
June 2nd 2012, 05:24 AM #1
Junior Member
Joined
Apr 2010
Posts
25
Thanks
5
Miscellaneous Theorem in Linear Algebra
Hi,
I have come across the following result in a book:
GL[n](F[p]) ⊇ F^*[p^n]
Does anyone know if this has a name or even know h... | 5 | [
-0.10693359375,
0.005462646484375,
-0.03515625,
0.08837890625,
-0.011962890625,
0.018798828125,
0.031005859375,
-0.05908203125,
0.0223388671875,
-0.1005859375,
0.031494140625,
0.061279296875,
-0.0400390625,
-0.007293701171875,
-0.005706787109375,
0.05615234375,
-0.111328125,
0.0310... | 33,551 | 33551 | |
Latin American applied research
Servicios Personalizados
Articulo
Indicadores
Links relacionados
Bookmark
versión impresa ISSN 0327-0793
Lat. Am. appl. res. v.33 n.2 Bahía Blanca abr./jun. 2003
An optimal approach to the multiple-depot heterogeneous vehicle routing problem with time window and capacity constr... | 4 | [
0.0081787109375,
0.0263671875,
0.00616455078125,
-0.01092529296875,
-0.0283203125,
0.037109375,
-0.0263671875,
0.064453125,
-0.03515625,
-0.03271484375,
-0.034423828125,
-0.0306396484375,
-0.0211181640625,
0.051513671875,
-0.01556396484375,
0.055419921875,
0.035400390625,
0.0441894... | 33,552 | 33552 | |
Z transforms problem
October 30th 2006, 11:01 AM
jmytil
Z transforms problem
Please, any help with this problem on Z trabsforms:
A man's assets in connection with time k (in years) are c(k) and his expenses are e(k). They both satisfy the diff. equations c(k+1)=1,5c(k)-e(k) and e(k+1)=0,21c(k)+0,5e(k).
... | 5 | [
-0.06396484375,
0.1318359375,
0.0303955078125,
-0.010009765625,
0.00099945068359375,
-0.051025390625,
0.053955078125,
0.0419921875,
-0.009765625,
0.050048828125,
0.009765625,
-0.12060546875,
0.0556640625,
0.045654296875,
-0.0419921875,
-0.052978515625,
-0.11279296875,
0.02709960937... | 33,553 | 33553 | |
Sums involving functions of the form y=a^x
February 16th 2011, 05:55 AM #1
Member
Joined
Jan 2011
Posts
88
Sums involving functions of the form y=a^x
I have my calculus 2 midterm today, and after going through the chapters I have found the only reccuring issue I have is with functions of the form $y=a^x$... | 5 | [
-0.042724609375,
-0.0185546875,
0.00225830078125,
0.0166015625,
-0.037353515625,
-0.051025390625,
0.08349609375,
-0.044189453125,
0.02685546875,
-0.0211181640625,
0.0191650390625,
-0.036865234375,
-0.0091552734375,
-0.0107421875,
0.10791015625,
0.054931640625,
0.0279541015625,
-0.0... | 33,554 | 33554 | |
Math Help
January 8th 2009, 12:40 AM #1
Newbie
Joined
Jan 2009
Posts
10
set arc
Hi i am french and i want an help on my math exercise (math are the same thing in every language), thank you for your good will.
below my exercise and my beginig of reponse
[tex]5.On considers the set arc[tex] \ ga... | 4 | [
-0.05517578125,
0.01220703125,
0.054443359375,
0.01263427734375,
0.000823974609375,
0.04296875,
0.1201171875,
0.0595703125,
-0.0196533203125,
-0.027099609375,
0.06298828125,
-0.00775146484375,
0.025634765625,
0.0137939453125,
-0.068359375,
-0.005767822265625,
-0.036376953125,
-0.11... | 33,555 | 33555 | |
Computing a Δ-complex homeomorphic to S^2
February 7th 2011, 03:58 AM #1
Junior Member
Joined
Oct 2010
Posts
31
Computing a Δ-complex homeomorphic to S^2
I'm not very topology-savvy, and the best I could come up with was:
Identify two (2-dimensional) closed discs to be the upper and lower hemisphere... | 4 | [
-0.00494384765625,
0.04931640625,
-0.008056640625,
-0.0498046875,
-0.04833984375,
-0.0206298828125,
-0.115234375,
-0.01263427734375,
0.01165771484375,
-0.06884765625,
0.083984375,
-0.04443359375,
-0.036865234375,
-0.0419921875,
0.0113525390625,
-0.1240234375,
-0.0634765625,
-0.0028... | 33,556 | 33556 | |
Weakly Cauchy
Let X be a reflexive normed linear space.Then show that X is weakly complete..i'e;Every Cauchy sequence is weakly convergent..
Pick a weak Cauchy sequence $(x_n)$ and call $(\hat{x}_n)$ its corresponding sequence in the double dual then for any $l\in X^*$ we have, since Cauchy sequences are bounded, $|\h... | 4 | [
-0.0155029296875,
-0.020263671875,
0.0927734375,
-0.052490234375,
-0.0206298828125,
0.1396484375,
-0.0059814453125,
0.08935546875,
-0.087890625,
-0.00075531005859375,
-0.01275634765625,
0.0302734375,
-0.020263671875,
-0.1083984375,
0.0206298828125,
0.02783203125,
0.0279541015625,
0... | 33,557 | 33557 | |
[SOLVED] Finding stationary points.
September 25th 2009, 02:06 PM #1
Member
Joined
Jul 2009
Posts
149
[SOLVED] Finding stationary points.
so i have a function
$f(x,y) = x^2+3y^2-y^3+5$
I want to find the stationary point
$f_x = 2 , f_y = 6y-3y^2$
so stationary point is at (0,2) ??
... | 5 | [
0.037841796875,
-0.064453125,
-0.09130859375,
-0.08154296875,
0.00787353515625,
-0.01556396484375,
-0.007232666015625,
0.0556640625,
0.062255859375,
0.0274658203125,
-0.0035858154296875,
0.07568359375,
-0.031494140625,
0.002197265625,
0.0400390625,
0.0185546875,
-0.043212890625,
-0... | 33,558 | 33558 | |
Lebesgue measure of some spaces...
April 10th 2009, 12:12 PM
Moo
Lebesgue measure of some spaces...
Hi,
Again, I've seen these questions in some other forums, and I wonder how it is solved...
1.
Let A be the set of x in [0,1] such that the decimal expansion of $x^2$ does not contain any 9.
Wha... | 5 | [
0.06494140625,
0.00738525390625,
-0.019775390625,
-0.050537109375,
0.03662109375,
0.1220703125,
0.162109375,
0.053466796875,
0.031982421875,
-0.01611328125,
-0.01251220703125,
-0.06396484375,
0.0264892578125,
0.054931640625,
-0.0576171875,
-0.0859375,
0.0279541015625,
-0.0393066406... | 33,559 | 33559 | |
Complex number
February 14th 2011, 05:52 AM
MichaelLight
Complex number
Under the section of complex number, i faced 2 questions which i couldn't answer... Here they go...
-Show that x=1-2i is a root of the equation x3-3x2+7x-5=0. Hence, find all the roots of the equation.
-Express Attachment 20803 in ... | 5 | [
-0.0966796875,
0.03173828125,
0.068359375,
0.11083984375,
0.005889892578125,
0.0252685546875,
0.055419921875,
0.0078125,
-0.00421142578125,
0.003021240234375,
0.049072265625,
-0.08203125,
0.09716796875,
0.08349609375,
0.007415771484375,
-0.013427734375,
-0.06982421875,
-0.012939453... | 33,560 | 33560 | |
integral with lne
$\int_{\ln e}^{\ln {e^3}} {\frac{{{e^{\frac{2}<br /> {{{x^2}}}}}}}<br /> {{{x^3}}}} dx<br />$ I'm not sure where to begin.
Last edited by Chris L T521; October 4th 2009 at 06:28 PM.
would this be right? $\frac{{ - 1}}<br /> {4}\int_{\ln e}^{\ln {e^3}} { - 4{e^u}} du<br />$
so I figured: $\frac{{ - ... | 5 | [
0.0032806396484375,
0.023681640625,
0.0028839111328125,
-0.072265625,
-0.014892578125,
-0.07958984375,
-0.083984375,
-0.01611328125,
0.00384521484375,
-0.10888671875,
0.03515625,
-0.005950927734375,
0.049560546875,
-0.027587890625,
0.0201416015625,
0.023681640625,
0.017822265625,
-... | 33,561 | 33561 | |
Method of moment generating function
November 8th 2008, 04:50 PM #1
Method of moment generating function
Suppose that Y follows an exponential distribution, with mean $\theta$. Use the method of moment generating functions to show that $\frac{2Y}{\theta}$ is a pivotal quantity and has a distribution
with 2 df... | 5 | [
-0.0042724609375,
-0.04638671875,
0.0089111328125,
-0.06494140625,
0.043701171875,
-0.057373046875,
-0.048583984375,
0.0184326171875,
0.01373291015625,
0.026123046875,
0.0517578125,
0.021484375,
-0.04248046875,
0.0101318359375,
-0.0126953125,
0.0296630859375,
-0.030029296875,
-0.03... | 33,562 | 33562 | |
Help factoring something. What's the process/rule?
July 30th 2011, 03:04 PM #1
Junior Member
Joined
Jul 2011
Posts
48
Help factoring something. What's the process/rule?
I'm having trouble figuring out how to factor this.
81y^4-72y^2+16
I know 16 is 2^4, so I rewrite as
81y^4-72y^2+2^4
... | 4 | [
0.0615234375,
0.048095703125,
-0.0216064453125,
0.0250244140625,
0.05029296875,
0.052001953125,
-0.009765625,
-0.034912109375,
-0.0673828125,
-0.01251220703125,
0.054931640625,
0.04150390625,
0.06689453125,
0.10107421875,
0.016845703125,
0.049560546875,
-0.036376953125,
0.012145996... | 33,563 | 33563 | |
Effect of Temperature on Photonic Band Gaps in Semiconductor-Based One-Dimensional Photonic Crystal
Advances in Optical Technologies
Volume 2013 (2013), Article ID 798087, 8 pages
http://dx.doi.org/10.1155/2013/798087
Research Article
Effect of Temperature on Photonic Band Gaps in Semiconductor-Based One-Dimensional ... | 4 | [
-0.0213623046875,
-0.0247802734375,
-0.021240234375,
0.06787109375,
-0.007720947265625,
-0.021240234375,
0.04248046875,
0.00543212890625,
0.0145263671875,
0.031005859375,
0.057373046875,
-0.04345703125,
0.0159912109375,
-0.0086669921875,
0.12890625,
-0.00531005859375,
0.0013885498046... | 33,564 | 33564 | |
Inverse variation problem (please check)
August 12th 2009, 03:11 AM #1
Member
Joined
Aug 2009
Posts
113
Inverse variation problem (please check)
“n” is inversely proportional to t+3. If t = 1 when n = 3, find t when n = 4
Here is my work:
n = k/t +3
3 = k/1+3
3(4) = k
12 = k
..... | 4 | [
-0.050537109375,
0.0517578125,
-0.00555419921875,
-0.039794921875,
-0.057861328125,
-0.0283203125,
0.025390625,
-0.0033416748046875,
0.015869140625,
0.0224609375,
0.032470703125,
0.0162353515625,
-0.06689453125,
-0.01434326171875,
-0.0213623046875,
-0.01611328125,
0.0263671875,
0.0... | 33,565 | 33565 | |
Evanescent Field Enhancement in Liquid Crystal Optical Fibers: A Field Characteristics Based Analysis
Advances in Condensed Matter Physics
Volume 2013 (2013), Article ID 504868, 9 pages
http://dx.doi.org/10.1155/2013/504868
Research Article
Evanescent Field Enhancement in Liquid Crystal Optical Fibers: A Field Charac... | 4 | [
0.0245361328125,
-0.043212890625,
0.034912109375,
-0.05712890625,
0.109375,
0.01190185546875,
0.0279541015625,
-0.0155029296875,
-0.0419921875,
0.08642578125,
0.005462646484375,
0.025146484375,
-0.048095703125,
0.04833984375,
0.01361083984375,
-0.0084228515625,
-0.0255126953125,
-0... | 33,566 | 33566 | |
Homework Help
Posted by norma on Sunday, July 4, 2010 at 8:58pm.
Mohammed has a garden in the shape of a semi-circle. If the width of the garden, at it’s widest point, is 14 feet, how large is the garden in square yards. Thank you in advance.
• math - Ms. Sue, Sunday, July 4, 2010 at 9:18pm
The radius is 7 fee... | 4 | [
0.056640625,
0.1044921875,
-0.0269775390625,
0.0267333984375,
0.04345703125,
-0.031005859375,
-0.03955078125,
0.07421875,
0.0054931640625,
0.041015625,
-0.0296630859375,
-0.00323486328125,
0.052001953125,
0.06640625,
0.04736328125,
-0.037841796875,
-0.042724609375,
0.0263671875,
... | 33,567 | 33567 | |
permutation and combination
October 11th 2008, 02:01 AM #1
MHF Contributor
Joined
Sep 2008
From
West Malaysia
Posts
1,261
permutation and combination
There are 2 rows of chairs . The first row has 2 chairs and the second row has 4 chairs . In how many ways can 6 people be seated if a couple from the ... | 4 | [
0.0986328125,
-0.0152587890625,
0.00579833984375,
-0.0224609375,
-0.0888671875,
0.0208740234375,
0.01385498046875,
-0.08447265625,
0.00714111328125,
0.029541015625,
-0.0130615234375,
-0.01141357421875,
0.068359375,
-0.035400390625,
-0.08203125,
0.00439453125,
-0.0732421875,
0.00188... | 33,568 | 33568 | |
inside-R
gsorth {heplots}
Orthogonalize successive columns of a data frame or matrix
Description
gsorth uses sequential, orthogonal projections, as in the Gram-Schmidt method, to transform a matrix or numeric columns of a data frame into an uncorrelated set, possibly retaining the same column
means and standard dev... | 4 | [
-0.047119140625,
-0.0634765625,
-0.0208740234375,
-0.0478515625,
-0.043212890625,
0.051025390625,
-0.08251953125,
-0.049072265625,
0.007415771484375,
-0.007110595703125,
0.033447265625,
0.1513671875,
-0.03125,
0.0244140625,
-0.012451171875,
-0.09423828125,
0.05126953125,
0.07177734... | 33,569 | 33569 | |
Laplace's equation in the semi-infinite strip 0 < x < a, y > 0
November 25th 2010, 12:53 AM #1
Laplace's equation in the semi-infinite strip 0 < x < a, y > 0
Problem:
$u_{xx} + u_{yy} = 0, 0 < x < a, y > 0$
$u(0, y) = u(a, y) = 0$ and $u(x, 0) = f(x)$
$u$ bounded as $y \to \infty$
Find $u(x, y... | 4 | [
-0.1044921875,
0.01953125,
0.0027008056640625,
0.01953125,
-0.0247802734375,
0.061279296875,
-0.01513671875,
-0.103515625,
-0.0458984375,
-0.0184326171875,
0.0224609375,
0.034912109375,
-0.050537109375,
-0.01202392578125,
0.0274658203125,
-0.0419921875,
0.0029449462890625,
-0.13574... | 33,570 | 33570 | |
Algebra Final
May 15th 2008, 07:59 PM
matt90
Algebra Final
I need some help with these review problems I have for an upcoming final.
How many homomorphisms are there of Z onto Z?
How many homomorphisms are there of Z into Z?
How many homomorphisms are there of Z into Z_2?
How would you go abou... | 5 | [
-0.07177734375,
0.0113525390625,
0.0031585693359375,
-0.07470703125,
0.020263671875,
0.0263671875,
0.015869140625,
0.0198974609375,
-0.0673828125,
-0.0986328125,
0.1357421875,
-0.0291748046875,
0.01458740234375,
-0.033447265625,
-0.040283203125,
0.07421875,
-0.1201171875,
0.0082397... | 33,571 | 33571 | |
Real analysis
1. June 28th 2013, 12:02 AM #1
Real analysis
P/s i need help to prove that every positive real no has a unigue positive square root
2. June 28th 2013, 06:01 AM #2
Re: Real analysis
Any proof of this depends upon the set of definitions and axioms with the sequence of theorems... | 4 | [
-0.0439453125,
0.09033203125,
0.0732421875,
0.0242919921875,
0.01043701171875,
0.0537109375,
0.055908203125,
0.078125,
0.06396484375,
0.001434326171875,
0.06982421875,
-0.016357421875,
-0.049072265625,
0.03173828125,
-0.053466796875,
-0.060546875,
0.05859375,
-0.0654296875,
0.025... | 33,572 | 33572 | |
Admissible Solutions and Rankine-Huoniot Shock Condition
July 16th 2010, 07:48 AM #1
Senior Member
Joined
Mar 2009
Posts
378
Admissible Solutions and Rankine-Huoniot Shock Condition
I thought these problems were pretty routine, and then I came across one that I am not able to do.
Find the admissible... | 5 | [
-0.103515625,
-0.0185546875,
0.048828125,
0.0189208984375,
0.0341796875,
-0.03173828125,
-0.0230712890625,
-0.0189208984375,
-0.04541015625,
-0.0281982421875,
0.07421875,
-0.0380859375,
0.034423828125,
-0.0257568359375,
-0.020263671875,
-0.04736328125,
-0.02978515625,
-0.12890625,
... | 33,573 | 33573 | |
Using a graph to calculate the half life of proactinium? How do I do the gradient?
1. Using a graph to calculate the half life of proactinium? How do I do the gradient?
I had carried out an experiement to determine the half life of proactinium and had plotted the graphs for the decay counts.
But now ... | 4 | [
-0.0308837890625,
-0.040771484375,
-0.0673828125,
0.006988525390625,
-0.035888671875,
-0.05810546875,
-0.046875,
0.1044921875,
0.0177001953125,
0.06298828125,
0.054931640625,
-0.0673828125,
0.03759765625,
0.06494140625,
0.04736328125,
0.032958984375,
-0.05810546875,
-0.061279296875... | 33,574 | 33574 | |
Symmetric Spaces and Fixed Points of Generalized Contractions
Abstract and Applied Analysis
Volume 2014 (2014), Article ID 763547, 8 pages
http://dx.doi.org/10.1155/2014/763547
Research Article
Symmetric Spaces and Fixed Points of Generalized Contractions
^1Department of Mathematics, Science Faculty for Girls, King ... | 5 | [
-0.04443359375,
-0.0174560546875,
0.11279296875,
-0.042724609375,
-0.076171875,
0.02294921875,
0.0277099609375,
-0.0274658203125,
0.059814453125,
0.014892578125,
0.0712890625,
0.0303955078125,
0.028564453125,
-0.007659912109375,
-0.029052734375,
-0.037841796875,
0.033447265625,
-0.... | 33,575 | 33575 | |
MATLAB linear programming question
January 31st 2009, 02:08 PM #1
Newbie
Joined
Jan 2009
Posts
3
MATLAB linear programming question
Question>>>>
Objective:
Max: 6 x1 + 10 x2 + 9 x3 + 20 x4
Constraints:
4x1 + 9x2 + 7x3 + 10x4 <= 600
x1 + x2 + 3x3 + 8x4 <= 420
30x1 + 40x2 + 20x3 + ... | 5 | [
0.05078125,
0.04345703125,
-0.126953125,
-0.09765625,
-0.0027618408203125,
0.0419921875,
0.007476806640625,
-0.01141357421875,
-0.11669921875,
-0.01287841796875,
0.01495361328125,
-0.037353515625,
0.0439453125,
-0.002593994140625,
-0.01397705078125,
0.078125,
-0.044677734375,
-0.05... | 33,576 | 33576 | |
Spring Elastic Potential Energy
Hi Icetray
For part (a), your answer is correct, have confidence in your answer!
part (b) do you notice that at equilibrium, the force exerted by the spring is equal to the weight of the mass? Equate both equations together to find out the spring constant. Then you can use the
equation... | 5 | [
-0.00885009765625,
0.0849609375,
0.048828125,
-0.0225830078125,
0.00445556640625,
0.0111083984375,
0.0771484375,
0.01708984375,
0.0166015625,
0.068359375,
-0.02587890625,
-0.023193359375,
-0.00970458984375,
-0.0191650390625,
-0.006500244140625,
0.009765625,
-0.0225830078125,
0.0400... | 33,577 | 33577 | |
CBSE Sample Paper of Mathematics for Class IX
Mathematics
Design of Sample Question Paper
SA-I Class IX (2010-2011)
Type of Question Marks per question Total No. of Questions Total Marks
M.C.Q. 1 10 10
SA-I 2 8 16
SA... | 4 | [
-0.06298828125,
0.00836181640625,
0.01531982421875,
-0.061767578125,
-0.004119873046875,
0.0252685546875,
-0.0201416015625,
0.068359375,
-0.0091552734375,
0.0189208984375,
-0.01123046875,
-0.042236328125,
0.051513671875,
0.00799560546875,
-0.0252685546875,
-0.05322265625,
-0.06347656... | 33,578 | 33578 | |
Algebraic Word Problem
April 24th 2005, 04:04 PM #1
OrangeSunshine
Guest
Algebraic Word Problem
I know it's a lot, but Im desperate and frustrated...any help would be greatly appreciated
Given: assume the number of items sold (n) depends linearly on the price charged for that item (x). From this, you will sh... | 4 | [
-0.0167236328125,
0.05078125,
0.02587890625,
0.0037994384765625,
-0.0086669921875,
0.0155029296875,
0.023681640625,
0.02294921875,
-0.0223388671875,
0.11083984375,
0.11328125,
-0.00555419921875,
0.058837890625,
0.0634765625,
0.06494140625,
0.024169921875,
-0.0478515625,
-0.03320312... | 33,579 | 33579 | |
Bezier spline curves
Linear Bezier spline
Linear Bezier spline is obtained by linear interpolation between two control points P[0] , P[1]
P(t) = (1-t)P[0] + tP[1] , 0 ≤ t ≤ 1
An interactive Java applet. Drag the mouse to move the nearest control point (a small blue square). In the right applet window you see basis p... | 4 | [
-0.04296875,
-0.033203125,
-0.032958984375,
-0.0303955078125,
-0.06494140625,
0.0033111572265625,
0.033447265625,
0.056884765625,
-0.01422119140625,
-0.0279541015625,
0.02001953125,
0.00836181640625,
0.060302734375,
-0.012451171875,
-0.0888671875,
0.0194091796875,
-0.06982421875,
-... | 33,580 | 33580 | |
Homework Help
Posted by Daniel on Wednesday, February 22, 2012 at 12:04am.
A rectangle has a length of 2d and a height of d. Each of the following three charges is located at a corner of the rectangle: +q1 (upper left corner), +q2 (lower right corner), and -q (lower left
corner). The net electric field at the (empty) ... | 4 | [
0.0164794921875,
0.12890625,
-0.007049560546875,
-0.056640625,
0.033447265625,
0.0478515625,
0.01953125,
-0.001129150390625,
0.06494140625,
-0.00701904296875,
0.06591796875,
-0.07568359375,
-0.023193359375,
0.0986328125,
-0.037353515625,
-0.026123046875,
-0.038330078125,
-0.0510253... | 33,581 | 33581 | |
System of equations with constraints (allocation of cost)
September 30th 2012, 04:28 PM #1
Newbie
Joined
Sep 2012
From
USA
Posts
3
System of equations with constraints (allocation of cost)
I have a real life business math problem. I need to allocate pay for multiple people across multiple locations w... | 4 | [
-0.0111083984375,
0.0927734375,
-0.0400390625,
-0.05126953125,
-0.045166015625,
0.033203125,
0.00115203857421875,
0.019775390625,
-0.091796875,
0.1455078125,
-0.0177001953125,
-0.07177734375,
0.0751953125,
0.052001953125,
0.055908203125,
0.10791015625,
0.020751953125,
0.00848388671... | 33,582 | 33582 | |
Geometry HELP HELP
Posted by Mary on Tuesday, February 18, 2014 at 6:56am.
Find the equation of a circle circumscribes a triangle determined by the line y= 0 , y= x and 2x+3y= 10
PLEASE HELP ME BELLS
• Geometry HELP HELP - Reiny, Tuesday, February 18, 2014 at 12:30pm
Make a sketch, and by some simple prelimin... | 4 | [
-0.1357421875,
-0.037353515625,
-0.05078125,
-0.0225830078125,
0.06884765625,
0.002471923828125,
-0.0147705078125,
0.07666015625,
0.0673828125,
-0.048828125,
0.01385498046875,
-0.07666015625,
0.03173828125,
-0.0038299560546875,
0.0177001953125,
0.05517578125,
-0.09130859375,
-0.071... | 33,583 | 33583 | |
Differentiate the function -
July 20th 2011, 11:19 AM #1
Newbie
Joined
Jul 2011
Posts
17
Differentiate the function -
y = ln(4x/5-3x)
What I have done is -
ln4x - ln(5-3x)
= dy/dx = 1/4x - 1/(5-3x)
= (5-3x-4x)/4x(5-3x)
Which is the wrong answer, please help?
I hope I have pos... | 5 | [
0.0279541015625,
-0.0306396484375,
0.11181640625,
-0.072265625,
-0.052734375,
-0.050537109375,
0.00518798828125,
-0.0703125,
0.043212890625,
0.043701171875,
0.095703125,
-0.0322265625,
0.002227783203125,
0.050048828125,
-0.0091552734375,
0.0306396484375,
-0.07080078125,
-0.01397705... | 33,584 | 33584 | |
vector analysis problem on dimensions
December 3rd 2005, 11:18 AM #1
jaspal
Guest
vector analysis problem on dimensions
Suppose a sphere of radius r is dropped into a viscous liquid of coefficient of viscosity q, and its velocity at an instant is v. The frictional force, F, acting against the sphere is given by
... | 4 | [
0.018310546875,
0.044921875,
0.06591796875,
0.014404296875,
0.03173828125,
0.0478515625,
0.0234375,
0.053955078125,
-0.0291748046875,
0.06298828125,
0.03955078125,
-0.020263671875,
0.033203125,
0.0634765625,
-0.06591796875,
0.05712890625,
-0.046875,
0.006256103515625,
-0.00300598... | 33,585 | 33585 | |
Putnam question
November 9th 2009, 08:40 PM #1
Putnam question
Hello everyone. I would greatly appreciate if someone could validate whether or not the following solution is correct.
Problem: Is it possible for a countably infinte set to have an uncountable collection of subsets such that the intersection of ... | 5 | [
-0.0026397705078125,
-0.0625,
-0.034423828125,
0.01708984375,
0.03173828125,
0.0732421875,
0.130859375,
-0.09521484375,
-0.054443359375,
-0.09326171875,
-0.046875,
-0.00933837890625,
0.00390625,
0.1083984375,
-0.05859375,
-0.049560546875,
-0.0087890625,
-0.060791015625,
0.0517578... | 33,586 | 33586 | |
Euler's Totient Function
Show there exists $C>0$ such that $n^{1-\epsilon}<\varphi(n) \;\; \forall \; n>2$, where $\epsilon = C\log\log n/\log n$.
Last edited by chiph588@; July 16th 2010 at 07:13 AM.
Does that work for n = 2 ? .... Remember that $\tfrac{n}{\phi(n)}<\zeta(2)\cdot \left(\tfrac{\sigma(n)}{n}\right)$ ( ... | 5 | [
-0.036865234375,
-0.042724609375,
0.08056640625,
0.0218505859375,
0.0169677734375,
-0.01373291015625,
-0.0023956298828125,
0.119140625,
-0.0238037109375,
-0.064453125,
-0.05615234375,
0.01055908203125,
0.032470703125,
-0.0791015625,
-0.0966796875,
-0.044921875,
0.0289306640625,
0.0... | 33,587 | 33587 | |
Homework Help
Posted by Andrzej on Tuesday, December 4, 2012 at 11:01pm.
Suppose a 60,000 martgage is to be amortized at 7.5% interest. Find the total amount of interest that would be paid for each term a) 10 years b) 30 years
• math - Reiny, Tuesday, December 4, 2012 at 11:28pm
I will do a) you can do b) the ... | 4 | [
-0.0164794921875,
0.07080078125,
-0.0181884765625,
0.00897216796875,
-0.07275390625,
-0.041748046875,
0.016845703125,
0.029541015625,
-0.0380859375,
0.0830078125,
0.01904296875,
-0.03173828125,
0.0230712890625,
0.01153564453125,
-0.01544189453125,
0.050048828125,
-0.1357421875,
0.0... | 33,588 | 33588 | |
gcd question
December 10th 2007, 06:38 PM #1
Newbie
Joined
Nov 2007
Posts
10
gcd question
Question: Show that (ma,mb) = m(a,b) if m if greater than 0.
Answer: c = (a,b)
c = xa + yb
mc = mxa + myb = m(a,b)
This is where I'm stuck, I'm not sure how to prove that m(a,b) = (ma,mb). I also k... | 5 | [
0.0267333984375,
-0.00107574462890625,
0.0240478515625,
-0.05810546875,
0.0010528564453125,
0.0240478515625,
0.0023040771484375,
0.0306396484375,
-0.041748046875,
0.025146484375,
0.0810546875,
-0.01611328125,
0.032470703125,
0.00506591796875,
0.01483154296875,
0.10205078125,
0.053710... | 33,589 | 33589 | |
Simple matrix problem
February 17th 2010, 04:28 PM #1
Member
Joined
Oct 2009
Posts
195
Thanks
1
Simple matrix problem
Given the system:
3x + y + z + v = b1
x - y + z + v = b2
x + y - z + v = b3
x + y + z - v = b4
Fint the values for b1,b2,b3,b4 for which the system is consistent... | 5 | [
-0.064453125,
-0.021484375,
-0.08154296875,
-0.11279296875,
-0.03515625,
0.021240234375,
-0.005157470703125,
-0.051025390625,
-0.06298828125,
0.0106201171875,
-0.036376953125,
-0.049560546875,
0.03759765625,
0.00567626953125,
-0.072265625,
0.08251953125,
0.0147705078125,
-0.0284423... | 33,590 | 33590 | |
The Open Door Web Site : IB Physics : How does an uncertainty in a
measurement affect the FINAL result?
Measurements
How does an uncertainty in a measurement affect the FINAL result?
The measurements we make during an experiment are usually not the final result; they are used to calculate the final result.
When con... | 4 | [
0.062255859375,
0.0625,
-0.0036773681640625,
0.032470703125,
-0.0546875,
-0.0771484375,
0.001251220703125,
0.1123046875,
0.11669921875,
-0.03173828125,
0.03125,
-0.0439453125,
0.0693359375,
0.013916015625,
-0.11328125,
-0.0615234375,
0.0234375,
0.10400390625,
-0.07275390625,
-0... | 33,591 | 33591 | |
Compound angles HELP!
February 14th 2013, 03:33 PM #1
Newbie
Joined
Feb 2013
From
England
Posts
5
Compound angles HELP!
Hi I'm new to this, I've been given a question on compound angles and I really don't know how to go about it. Any help would be greatly appreciated:
Using compound angles prove... | 4 | [
-0.08544921875,
-0.0284423828125,
0.0059814453125,
0.00087738037109375,
0.045166015625,
0.08154296875,
0.0223388671875,
-0.047607421875,
0.03466796875,
0.046875,
0.091796875,
-0.0703125,
0.006927490234375,
0.0439453125,
0.1240234375,
0.00096893310546875,
-0.016357421875,
0.02832031... | 33,592 | 33592 | |
coordinate systems
February 24th 2011, 11:27 AM #1
Newbie
Joined
Feb 2011
Posts
24
coordinate systems
x = (5; 6) and y = (-1; 0), vectors in R^2. Find the unique basis C = {w1;w2} of R^2 with respect to which [x]C = (-1, 2) and [y]C = (2, -1).
I know how to find [x] and [y] when given x, y and w's, ... | 4 | [
-0.07861328125,
-0.0810546875,
-0.0517578125,
0.0223388671875,
0.060546875,
-0.01470947265625,
0.0218505859375,
-0.0185546875,
-0.0108642578125,
-0.09228515625,
0.0130615234375,
0.016357421875,
-0.00958251953125,
-0.01007080078125,
-0.0869140625,
0.042724609375,
-0.111328125,
0.022... | 33,593 | 33593 | |
area of triangles 2
May 26th 2010, 02:47 AM #1
Junior Member
Joined
Feb 2009
Posts
63
a rhombus has an area of 50 cm^2 and an internal angle of size 63 degrees. Find the lenth of its sides.
please show all working out.
i worked out the other one, but with this one i just can't seem to get the ri... | 4 | [
0.0263671875,
0.087890625,
-0.006927490234375,
-0.03955078125,
-0.034423828125,
-0.000732421875,
-0.031494140625,
0.049072265625,
-0.021484375,
0.043701171875,
0.0595703125,
-0.0849609375,
-0.01116943359375,
0.035400390625,
0.06005859375,
0.046875,
-0.09130859375,
0.037109375,
-0... | 33,594 | 33594 | |
Proving orthogonal ?
July 19th 2010, 06:23 PM #1
Super Member
Joined
Jan 2009
Posts
715
Proving orthogonal ?
This problem is very special , there is a beautiful theorem behind this , see if you can discover it !
Problem :
Outwards along the sides of convex quadrilateral $ABCD$ are constructed ... | 5 | [
-0.06640625,
0.0400390625,
-0.011962890625,
-0.11865234375,
-0.08056640625,
0.06591796875,
-0.03466796875,
-0.031982421875,
0.014404296875,
0.033935546875,
0.0017242431640625,
-0.0179443359375,
0.058837890625,
0.02490234375,
-0.033935546875,
0.013671875,
0.031494140625,
0.028808593... | 33,595 | 33595 | |
Writing up a Recurrence Relation Problem...
October 11th 2010, 11:40 AM #1
Newbie
Joined
Sep 2010
Posts
10
Writing up a Recurrence Relation Problem...
I know how to solve Recurrence Relation problems, I just need help writing up the equation:
Assume that the deer population of Rustic County... | 5 | [
-0.1240234375,
-0.0012054443359375,
0.052978515625,
-0.01324462890625,
-0.038818359375,
-0.042236328125,
-0.01416015625,
0.0194091796875,
-0.0498046875,
0.0380859375,
0.0693359375,
-0.0308837890625,
0.0113525390625,
-0.01531982421875,
-0.0152587890625,
0.061767578125,
-0.016235351562... | 33,596 | 33596 | |
differentiation of exponential function
December 5th 2011, 10:32 PM #1
Member
Joined
Nov 2010
Posts
93
differentiation of exponential function
Hello, I am stuck on differentiating this:
6 * e^(x^(1/2))
Can someone please show me the steps. I understand chain and product rules will be implemente... | 5 | [
0.0003261566162109375,
-0.0137939453125,
0.043212890625,
-0.0145263671875,
0.0137939453125,
-0.06396484375,
-0.017333984375,
-0.00179290771484375,
0.01708984375,
0.01251220703125,
0.03271484375,
-0.040771484375,
0.0038604736328125,
0.025634765625,
0.0400390625,
0.025146484375,
-0.098... | 33,597 | 33597 | |
Symbolic Differentiation in Julia
A Brief Introduction to Metaprogramming in Julia
In contrast to my previous post, which described one way in which Julia allows (and expects) the programmer to write code that directly employs the atomic operations offered by computers, this post
is meant to introduce newcomers to som... | 5 | [
-0.068359375,
-0.022216796875,
0.0234375,
0.0107421875,
-0.032470703125,
-0.006317138671875,
0.029296875,
0.02978515625,
0.05712890625,
0.008544921875,
0.039306640625,
-0.01953125,
-0.0018463134765625,
0.07470703125,
0.0206298828125,
-0.01446533203125,
-0.0595703125,
0.056640625,
... | 33,598 | 33598 | |
Multi-layer Neural Networks
That is, multiple layers of links. Must involve what are called "hidden" nodes - nothing to do with security, this just means they are not "visible" from the Input or Output sides - rather they are
inside the network somewhere.
These allow more complex classifications. Consider the network... | 4 | [
-0.0230712890625,
-0.091796875,
-0.10986328125,
0.0166015625,
0.021484375,
0.00201416015625,
-0.0205078125,
-0.0927734375,
0.0203857421875,
-0.061279296875,
-0.057861328125,
-0.0341796875,
0.031982421875,
-0.0267333984375,
-0.046630859375,
0.072265625,
-0.0167236328125,
0.026855468... | 33,599 | 33599 |