content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Tangent slope
February 15th 2008, 07:26 AM
imthatgirl
Tangent slope
If anyone can help with any of these questions please post
1) y= √(16-x) , where y= 5
2) y= √(x-7) , at x= 16
3) y= 8/(√(x+11)) , at x=5
February 15th 2008, 09:17 AM
wingless
Do you know that slope of the tangent of the curv... | 5 | [
-0.068359375,
0.04833984375,
0.0791015625,
-0.0703125,
0.01611328125,
0.06494140625,
-0.01953125,
0.0198974609375,
-0.04443359375,
0.07763671875,
0.142578125,
0.013427734375,
-0.034423828125,
0.05419921875,
0.034912109375,
0.0947265625,
-0.08251953125,
0.0031585693359375,
-0.0310... | 37,200 | 37200 | |
Convergence of analytic covering maps to a covering map
up vote 1 down vote favorite
3
Suppose a sequence of analytic maps $f_n: \mathbb{D} \to \mathbb{D}$ from the unit disk to itself, each of which is a topological covering map to its image, converges locally uniformly to an analytic
map $f$. Under what conditions w... | 4 | [
-0.058349609375,
0.05859375,
-0.04345703125,
0.041015625,
0.061279296875,
0.0022125244140625,
0.0302734375,
-0.022216796875,
-0.0162353515625,
-0.041259765625,
0.0439453125,
0.01513671875,
0.03173828125,
-0.01153564453125,
-0.0098876953125,
-0.1572265625,
0.008544921875,
-0.1103515... | 37,201 | 37201 | |
summation problem
May 14th 2008, 03:38 PM
hatsoff
summation problem
Hi, all. I need to evaluate the following:
$\frac{1}{k}\sum_{n = 0}^{\infty}(\frac{k-1}{k})^nn$
where k∈ℕ and k≠1
I don't really know how to do much else than test whether or not a series converges or diverges; I don't know how to... | 5 | [
0.0050048828125,
-0.027587890625,
0.034912109375,
0.03564453125,
-0.052734375,
-0.01220703125,
0.0012969970703125,
-0.06689453125,
0.06982421875,
0.064453125,
-0.0859375,
-0.0458984375,
-0.015625,
0.053466796875,
-0.11962890625,
0.017578125,
-0.01434326171875,
-0.07763671875,
0.0... | 37,202 | 37202 | |
Statistics/probability problem 2
January 2nd 2009, 02:13 PM #1
Junior Member
Joined
Nov 2008
Posts
45
Statistics/probability problem 2
Serum albumin is an important blood protein. In a particular population of healty individuals the distribution of serum albumin is found to be Normal with mean 40 gL ^-1 ... | 4 | [
0.053466796875,
0.064453125,
0.03857421875,
-0.0181884765625,
-0.0260009765625,
-0.000911712646484375,
0.033203125,
0.11669921875,
-0.02197265625,
-0.02001953125,
0.035888671875,
-0.083984375,
-0.0014495849609375,
-0.01470947265625,
-0.021728515625,
0.007659912109375,
0.027099609375,... | 37,203 | 37203 | |
Math Help
April 12th 2014, 07:57 AM #1
$S_{n}=1+2\frac{1}{2}+3\frac{1}{2}^{2}+4\frac{1}{2} ^{3}+.............+n\frac{1}{2}^{n-1}$
$T_{n}=(n+2)\frac{1}{2}^{n-1} n-Z^{+}$
Show that
$S_{n}=4-T_{n}$
In this case how can i do this ? can i find the $U_{r}$of this series and then continue???? plz help>... | 5 | [
-0.064453125,
0.059814453125,
0.0234375,
0.0145263671875,
-0.053955078125,
-0.021728515625,
-0.034423828125,
0.0322265625,
0.007049560546875,
-0.0269775390625,
-0.0537109375,
-0.059814453125,
-0.0181884765625,
-0.020751953125,
-0.08544921875,
-0.1015625,
0.0296630859375,
-0.1337890... | 37,204 | 37204 | |
determine: definite matrix
January 10th 2010, 01:49 PM #1
Newbie
Joined
Dec 2009
Posts
6
determine: definite matrix
I do have the following matrix:
Code:
0, 2, 1
2, 1, 3
1, 3, 7
To determine whether this is pos,- neg, -semi,...-definite, I tried it
with the eigenvalues, as fol... | 4 | [
-0.024658203125,
-0.020751953125,
-0.060302734375,
-0.0771484375,
-0.0147705078125,
-0.01904296875,
0.01953125,
-0.06640625,
-0.0859375,
0.009765625,
0.10595703125,
-0.0216064453125,
-0.06201171875,
0.053466796875,
-0.003265380859375,
-0.021484375,
-0.0341796875,
-0.052734375,
0.... | 37,205 | 37205 | |
Stability of planar nonautonomous dynamic systems
Abstract
We are describing the stable nonautonomous planar dynamic systems with complex coefficients by using the asymptotic solutions (phase functions) of the characteristic (Riccati) equation. In the case
of nonautonomous dynamic systems, this approach is more accura... | 5 | [
-0.0927734375,
0.0322265625,
-0.05078125,
0.07861328125,
0.0245361328125,
0.07275390625,
-0.032958984375,
-0.044921875,
0.07080078125,
-0.01904296875,
0.06298828125,
0.0028228759765625,
0.00021457672119140625,
-0.0301513671875,
0.033203125,
-0.00060272216796875,
-0.03759765625,
-0.... | 37,206 | 37206 | |
Repeating Decimals and Fractions
Associated Topics || Dr. Math Home || Search Dr. Math
Repeating Decimals and Fractions
... | 4 | [
-0.060546875,
0.0203857421875,
0.036376953125,
0.034423828125,
-0.072265625,
0.00787353515625,
-0.0103759765625,
-0.00439453125,
-0.022216796875,
0.0654296875,
0.0029449462890625,
-0.08154296875,
-0.00311279296875,
0.06884765625,
-0.01495361328125,
-0.0252685546875,
-0.07861328125,
... | 37,207 | 37207 | |
Rates of change
March 7th 2009, 04:06 AM #1
Newbie
Joined
Feb 2009
Posts
2
Rates of change
I'm having trouble fully understanding the following question. Can anyone help please?
p = e^(β0 + β1x) where β0 = 10.17 and β1 = -0.01581
dp/dx = β1e^(β0 + β1x)
The Question
A small change in... | 5 | [
0.01275634765625,
0.0107421875,
0.099609375,
0.0177001953125,
0.09130859375,
-0.050537109375,
0.015869140625,
0.064453125,
0.01287841796875,
0.021484375,
0.07568359375,
-0.01043701171875,
-0.0150146484375,
0.0291748046875,
0.000823974609375,
-0.016357421875,
-0.026611328125,
0.0549... | 37,208 | 37208 | |
Is $SL_1(D)$ toplogically finitely generated, for $D$ a division algebra over a local field?
up vote 4 down vote favorite
1
I've been struggling with this one all day, and I was wondering if someone can give me a hand with the proof. I'm not even sure if the group in question is finitely generated, so I would apprecia... | 4 | [
-0.0264892578125,
0.0262451171875,
-0.015380859375,
0.046875,
0.037841796875,
0.02978515625,
0.000751495361328125,
-0.0771484375,
-0.01953125,
-0.0947265625,
0.01226806640625,
-0.0203857421875,
-0.0002593994140625,
-0.0291748046875,
-0.039306640625,
-0.02001953125,
-0.0311279296875,
... | 37,209 | 37209 | |
Finite field extensions.
November 5th 2009, 11:28 AM #1
Member
Joined
Feb 2009
Posts
138
Finite field extensions.
Hi:
If K/F is a finite field extension of degree n, so is K(x)/F(x), where K(x) is the field of rational functions in one variable over K, idem F(x).
I could prove K(x)/F(x) is a fin... | 5 | [
-0.034423828125,
0.0654296875,
0.021484375,
0.03271484375,
-0.00518798828125,
0.0230712890625,
0.068359375,
-0.044921875,
-0.008056640625,
-0.06787109375,
-0.007293701171875,
-0.03271484375,
0.0072021484375,
-0.0020294189453125,
-0.052001953125,
0.0810546875,
-0.0673828125,
0.03015... | 37,210 | 37210 | |
First order linear ODE solution
April 2nd 2012, 03:44 AM #1
Newbie
Joined
Mar 2012
From
UK
Posts
23
Thanks
1
First order linear ODE solution
Hey,
So I've been trying to solve this ode,
I got stuck at the point where I end up integrating e^x^2dx
The ODE is
y'=1-2xy with y(0)=0
... | 4 | [
-0.0203857421875,
0.00848388671875,
0.057373046875,
0.0390625,
-0.004730224609375,
-0.002197265625,
-0.060791015625,
-0.041748046875,
-0.0537109375,
-0.017822265625,
0.0830078125,
-0.03271484375,
0.025634765625,
0.01409912109375,
0.0146484375,
0.007232666015625,
0.0106201171875,
-0... | 37,211 | 37211 | |
Quadrilateral Duality
I could at first see no stars from the chaise-cart. But they twinkled out one by one, without throwing any light on the questions why on earth I was going to play at Miss Havisham's, and what on
earth I was expected to play at.
... | 4 | [
-0.0035400390625,
0.041748046875,
0.02099609375,
-0.033203125,
-0.08154296875,
-0.01611328125,
0.0228271484375,
0.01080322265625,
-0.0015869140625,
-0.031494140625,
-0.0262451171875,
0.0169677734375,
-0.0186767578125,
-0.0198974609375,
-0.02294921875,
0.045166015625,
-0.0104370117187... | 37,212 | 37212 | |
Equation with 2 solutions
October 15th 2012, 07:47 AM #1
Newbie
Joined
Oct 2012
From
Quebec
Posts
10
Equation with 2 solutions
e^(2x)-7e^x+12=0 had two solutions
i got this (7(plus minus)sqrt(7^2-4*e*12))/2e now i replaced e with 2.718 because that is the value of e and I got 1.591 and 0.984. Is... | 4 | [
0.00127410888671875,
-0.0031585693359375,
0.031982421875,
-0.00970458984375,
0.028076171875,
-0.07080078125,
0.03515625,
0.0185546875,
-0.0194091796875,
0.033935546875,
0.10009765625,
-0.09716796875,
-0.006439208984375,
0.033935546875,
0.0086669921875,
-0.045654296875,
-0.0791015625,... | 37,213 | 37213 | |
example of Local cohomology
up vote 5 down vote favorite
Let $S=k[x_1,...,x_n]$ be a polynomial ring over field $k$ with maximal ideal $m=(x_1,...,x_n)$. I wanna make a $3$-dimensional $S$-module $M$ such that $H^0_m(M)=H^1_m(M)=0$ and $H^2_m(M)\neq 0$ be
finitely generated (or in general case: $H^i_m(M)$ be finite fo... | 4 | [
0.0078125,
0.0927734375,
-0.051025390625,
0.0230712890625,
0.0245361328125,
-0.0048828125,
-0.051025390625,
-0.05810546875,
-0.035888671875,
-0.111328125,
0.1064453125,
-0.10009765625,
0.05322265625,
-0.07958984375,
0.0203857421875,
0.0703125,
-0.000896453857421875,
0.07568359375,
... | 37,214 | 37214 | |
Set of primes dividing polynomials and composition
up vote 4 down vote favorite
For a non-constant polynomial $A \in \mathbb{Z}[x]$, let $\mathcal{P}(A)$ denote the set of prime numbers $p$ which divide $A(n)$ for some integer $n$. If $\mathcal{P}(A) \subseteq \mathcal{P}(B)$
for some $A,B$, does there necessarily exi... | 5 | [
-0.061279296875,
-0.033203125,
-0.05615234375,
0.0478515625,
-0.01904296875,
0.01531982421875,
0.039794921875,
-0.02392578125,
-0.04736328125,
-0.09228515625,
-0.07080078125,
-0.053955078125,
0.06298828125,
0.056640625,
0.01422119140625,
-0.033447265625,
0.004364013671875,
0.041992... | 37,215 | 37215 | |
Tricky Partial Differential problem
July 17th 2010, 05:20 AM #1
Tricky Partial Differential problem
Hi all, I wish to verify
$u_t=ku_x_x$ with the shorthand notations being $u_t=\frac{\partial u}{\partial t}$ and $u_x_x=\frac{\partial^2 u}{\partial x^2}$ for the following expression
$u(x,t)=\frac{1}{2\s... | 5 | [
-0.0400390625,
0.046630859375,
0.1025390625,
-0.0537109375,
0.0181884765625,
-0.01025390625,
0.0164794921875,
-0.018798828125,
-0.0211181640625,
0.034912109375,
0.053466796875,
-0.04150390625,
-0.0185546875,
-0.057373046875,
-0.0274658203125,
-0.00872802734375,
0.0390625,
-0.068847... | 37,216 | 37216 | |
Factorials versus triangle numbers
August 25th 2010, 04:11 PM
wonderboy1953
Factorials versus triangle numbers
I was checking out the factorials versus triangle numbers and I ran across something that struck me as quite interesting.
Let's take 1! and divide it by the first triangle number, 1, which equals 1... | 4 | [
-0.018310546875,
-0.0947265625,
-0.04345703125,
-0.072265625,
0.012939453125,
-0.0267333984375,
-0.059814453125,
0.00634765625,
-0.01043701171875,
0.0130615234375,
-0.0167236328125,
-0.0615234375,
-0.02587890625,
0.02197265625,
0.06396484375,
-0.03271484375,
-0.056396484375,
-0.022... | 37,217 | 37217 | |
Set of complex numbers that satisfy a given equation
February 11th 2011, 11:05 AM
Sheld
Set of complex numbers that satisfy a given equation
The equation is $|z-a| - |z+a| = 2c$
i) Let $a \in \mathbb{R}$ and $c > 0$ be fixed. Describe the set of points $z$ satisfying the above equation for every possible ch... | 4 | [
-0.109375,
0.0213623046875,
-0.04541015625,
0.0026397705078125,
-0.0162353515625,
0.033447265625,
0.032958984375,
0.059814453125,
-0.0004024505615234375,
-0.0322265625,
0.09619140625,
-0.05029296875,
0.00836181640625,
0.01214599609375,
0.0034332275390625,
-0.04345703125,
0.0093994140... | 37,218 | 37218 | |
Math Forum Discussions
Re: Einstein's factor of 2 in starlight deflection
Posted: Sep 10, 2011 8:11 AM
On Sep 3, 6:47 pm, "H.Jones" <h.jone...@googlemail.com> wrote:
> On Aug 23, 12:21 pm, "H.Jones" <h.jone...@googlemail.com> wrote:
>
> > To obtain g at Planck time we merely divide our current SI G by the
> > Planck f... | 5 | [
0.0498046875,
-0.05078125,
-0.0001354217529296875,
0.09912109375,
-0.028564453125,
-0.040771484375,
0.022216796875,
0.0242919921875,
0.032470703125,
-0.0081787109375,
0.08056640625,
-0.08984375,
-0.0242919921875,
0.040283203125,
0.02099609375,
0.0225830078125,
0.0439453125,
0.07470... | 37,219 | 37219 | |
For what subsets S of (Z/nZ)* is there a Euclidean proof that there are infinitely many primes whose residues lie in S?
up vote 12 down vote favorite
8
For small values of $n$ and $(a, n) = 1$ it is sometimes possible to give an elementary proof that there are infinitely many primes congruent to $a \bmod n$ along the ... | 4 | [
-0.11669921875,
0.042724609375,
-0.05712890625,
0.047607421875,
0.07958984375,
0.0196533203125,
0.056396484375,
0.0634765625,
-0.0184326171875,
-0.002349853515625,
-0.0035552978515625,
0.0341796875,
0.07763671875,
0.026123046875,
-0.031494140625,
-0.0908203125,
-0.060302734375,
-0.... | 37,220 | 37220 | |
This Week's Finds (Week 319)
April 11, 2012
This Week's Finds (Week 319)
John Baez
This week I'm trying something new: including a climate model that runs on your web browser!
It's not a realistic model; we're just getting started. But some programmers in the Azimuth Project team are interested in making more such ... | 4 | [
-0.08349609375,
-0.0059814453125,
0.09326171875,
0.07568359375,
0.011474609375,
-0.04296875,
-0.07861328125,
0.005126953125,
-0.0174560546875,
0.0703125,
-0.0869140625,
-0.058837890625,
0.00982666015625,
-0.055908203125,
0.03271484375,
-0.0120849609375,
-0.033935546875,
0.025512695... | 37,221 | 37221 | |
Bedbugs and Beds
Date: 09/14/97 at 21:41:57
From: adi mulzer
Subject: Bedbugs and Beds
Please help me. I can't figure out this problem - I don't even know
where to begin.
The happy Holiday hotel is blessed with cheerful bedbugs. In each
single bed you can find 7 bedbugs, and in each double bed 13 bedbugs.
If there ... | 4 | [
0.057373046875,
0.028076171875,
0.038818359375,
0.033935546875,
-0.021240234375,
0.06591796875,
0.0341796875,
-0.0035858154296875,
-0.044189453125,
0.02392578125,
0.0140380859375,
-0.060791015625,
0.0634765625,
0.0576171875,
0.0262451171875,
0.047607421875,
-0.07373046875,
-0.04663... | 37,222 | 37222 | |
Help with conditional probability of joint density functions.
November 16th 2009, 04:34 PM #1
Junior Member
Joined
Sep 2009
Posts
69
Let X and Y be continuous random variables with joint density function
$f(x,y)=\left\{\begin{array}{lr}(24xy)&0< x< 1;0< y<1-x\\0&otherwise\end{array}\right.$
How w... | 4 | [
0.040771484375,
-0.02587890625,
0.0230712890625,
-0.04345703125,
0.052978515625,
-0.041015625,
-0.00506591796875,
-0.0023040771484375,
-0.07958984375,
-0.0277099609375,
-0.022705078125,
0.034423828125,
0.0810546875,
0.046875,
0.034912109375,
0.0184326171875,
-0.051513671875,
-0.117... | 37,223 | 37223 | |
BC calc problems
November 11th 2005, 08:28 AM
dizzystudent
BC calc problems
1973 -
Given the curve $x + xy +2y^2 = 6$, find the coordinates of all other points on this curve with slop equal to the slope at (2,1)
1970 -
the function $f$ is defined for all x not equal to 0, in the interval $-1<x<1$ by... | 5 | [
-0.0294189453125,
-0.006256103515625,
-0.011962890625,
0.01373291015625,
0.008544921875,
0.007537841796875,
-0.072265625,
0.03857421875,
-0.0615234375,
0.0272216796875,
0.11865234375,
-0.03515625,
0.044677734375,
0.083984375,
-0.003875732421875,
0.007476806640625,
-0.056396484375,
... | 37,224 | 37224 | |
Kazhdan-Lusztig Polynomials
Sage can compute ordinary Kazhdan-Lusztig polynomials for Weyl groups or affine Weyl groups (and potentially other Coxeter groups).
You must create a Weyl group W and a ring containing an indeterminate q. The ring may be a univariate polynomial ring or a univariate Laurent polynomial ring.... | 5 | [
-0.1201171875,
0.0004367828369140625,
-0.0771484375,
0.03662109375,
-0.06005859375,
-0.06005859375,
-0.016845703125,
-0.0150146484375,
0.001953125,
-0.01287841796875,
-0.03173828125,
0.043212890625,
-0.03564453125,
0.0250244140625,
0.00970458984375,
0.05908203125,
-0.06298828125,
0... | 37,225 | 37225 | |
ABCD * 4 = DCBA
Date: 05/23/2000 at 14:54:30
From: Kerri Chaffee
Subject: Cryptarithm
Find digits A, B, C, and D that solve the following cryptarithm:
ABCD * 4 = DCBA
I have tried it many times but I can not seem to get the right digits
to answer the question.
If someone could answer this for me it would be ... | 4 | [
-0.04931640625,
0.0537109375,
0.025390625,
-0.03466796875,
-0.09228515625,
0.048095703125,
0.0537109375,
0.00262451171875,
0.00946044921875,
-0.054443359375,
-0.058837890625,
-0.053466796875,
0.04833984375,
0.06884765625,
-0.04150390625,
-0.0159912109375,
-0.0751953125,
0.021972656... | 37,226 | 37226 | |
me
I. The Dimensional Ladder
0. Introduction
a. The Ladder of n-Categories
A story about climbing the dimensional ladder, without detailed
definitions but with pictures of:
sets
functions
diagrams of sets and functions
categories
functors
natural transformations
diagrams of categories, functors and natural trans... | 4 | [
-0.0274658203125,
0.01055908203125,
0.0225830078125,
-0.004638671875,
-0.10107421875,
-0.017333984375,
-0.10400390625,
0.046142578125,
0.030517578125,
0.01287841796875,
-0.0203857421875,
-0.09033203125,
-0.044677734375,
0.005645751953125,
0.03564453125,
0.03515625,
-0.08447265625,
... | 37,227 | 37227 | |
Math Help
December 13th 2007, 09:56 AM #1
Newbie
Joined
Dec 2007
Posts
10
Please help asap
Hi, i really need help figuring two problems out.
problem 1
the perimeter of a rectangular picture is 34cm. the diagonal is 13cm. find the dimensions of this picture.
how on earth do i figure this o... | 4 | [
0.0390625,
0.08447265625,
-0.043701171875,
-0.111328125,
0.0517578125,
0.056640625,
-0.0106201171875,
0.078125,
-0.041259765625,
-0.03173828125,
0.0869140625,
-0.01611328125,
-0.0216064453125,
0.049072265625,
0.0223388671875,
0.039306640625,
0.01434326171875,
0.036376953125,
-0.0... | 37,228 | 37228 | |
Normal distribution approximation
December 8th 2010, 09:20 AM
tmas
Normal distribution approximation
A multiple choice test consists of 50 questions and each question has four answers from which to choose. If a student guesses every answer, what is the probabilty that the student
b) will get more than 10 que... | 5 | [
0.07373046875,
0.076171875,
0.033447265625,
-0.059326171875,
-0.03271484375,
0.0211181640625,
0.0277099609375,
0.0849609375,
0.0185546875,
0.12890625,
0.00592041015625,
-0.01165771484375,
0.00506591796875,
0.0220947265625,
0.00433349609375,
0.05322265625,
-0.04296875,
-0.0493164062... | 37,229 | 37229 | |
Subgroups of order p^2 of an abelian group
How many subgroups of order p2 does the abelian group the direct sum Zp3+Zp2? I still don't have any idea.
there are two types of groups of order p2: cyclic, and non-cyclic. let's look at the non-cyclic groups of order p2 in Zp3 x Zp2, first. such a subgroup must be of the fo... | 5 | [
-0.05126953125,
-0.002288818359375,
0.03466796875,
0.0218505859375,
0.01171875,
-0.0556640625,
0.047119140625,
-0.0157470703125,
0.013916015625,
-0.050537109375,
0.0263671875,
0.00445556640625,
0.0390625,
-0.0771484375,
0.0269775390625,
0.031005859375,
-0.051025390625,
0.0177001953... | 37,230 | 37230 | |
lines
February 23rd 2007, 02:12 AM
Haxcake
lines
I have a test today and i'm not sure how to do somethings
Draw each pair of graphs on the same axes. In each case, tell what is the same and what is differnt about the graphs.
1. y= 1 over 4x; y= -1 over 4x
2. y = 4x; y= 4x - 2
Use the inte... | 4 | [
-0.033935546875,
-0.0103759765625,
-0.00003886222839355469,
-0.04443359375,
0.013916015625,
-0.047607421875,
-0.0091552734375,
0.003936767578125,
-0.02392578125,
-0.0888671875,
0.041748046875,
-0.0216064453125,
0.0291748046875,
0.007110595703125,
-0.053955078125,
0.0947265625,
-0.074... | 37,231 | 37231 | |
Finite spectrum annihilated by multiplication by two
up vote 14 down vote favorite
1
Let $X$ be a finite spectrum. Say that $X$ has characteristic two if multiplication by two on $X$ is nullhomotopic.
Does there exist a noncontractible finite spectrum of characteristic two?
(This is mentioned as an open problem in B... | 4 | [
0.0252685546875,
0.0125732421875,
-0.06640625,
0.036376953125,
-0.006622314453125,
0.031005859375,
0.04443359375,
-0.064453125,
-0.01708984375,
-0.04541015625,
0.07470703125,
-0.064453125,
-0.023193359375,
0.012939453125,
0.047607421875,
0.007354736328125,
-0.0198974609375,
-0.0197... | 37,232 | 37232 | |
Subgroup Proof
November 14th 2011, 02:35 PM
JSB1917
Subgroup Proof
Let G=GL(2,R) and let K be a subgroup of R*. Prove if H = {AeG | det(A)eK} show H is a subgroup of G. (Note: e means element of)
Here's my attempt. Let A,BeH then A,BeG so det(A),det(B)eK. Since K is a subgroup of R* then det(A)det(B)eK. The... | 4 | [
-0.07177734375,
0.061767578125,
0.07763671875,
0.00179290771484375,
0.032470703125,
0.00604248046875,
0.125,
-0.07177734375,
-0.00469970703125,
-0.05322265625,
0.06201171875,
-0.0546875,
0.0255126953125,
-0.05810546875,
0.033203125,
0.01531982421875,
-0.0208740234375,
-0.0286865234... | 37,233 | 37233 | |
Recursion.docx - Student of Fortune
1. The recur method prints a sequence of digits on a single line.
public static void recur (int n)
{
if(n==1)
{
System.out.print(n);
}
else
{
System.out.print(n);
recur(n - 1);
}
}
... | 4 | [
-0.017578125,
0.01361083984375,
0.003082275390625,
-0.0849609375,
-0.1103515625,
-0.052490234375,
0.017578125,
0.1015625,
-0.038818359375,
0.0198974609375,
-0.07373046875,
0.0145263671875,
0.03466796875,
-0.054931640625,
-0.0791015625,
-0.03759765625,
-0.01470947265625,
0.051025390... | 37,234 | 37234 | |
TheSalzers
Chapter 08: Sources of Short-Term Financing
Chapter 8
Sources of Short-Term Financing
Discussion Questions
8-1. Under what circumstances would it be advisable to borrow money to take a
... | 5 | [
0.00848388671875,
-0.006317138671875,
0.01080322265625,
-0.053955078125,
0.07177734375,
0.01953125,
-0.004730224609375,
0.058837890625,
0.040283203125,
0.0223388671875,
0.03955078125,
-0.024658203125,
-0.044189453125,
-0.045654296875,
0.017578125,
-0.03076171875,
-0.00909423828125,
... | 37,235 | 37235 | |
Series help
June 21st 2006, 04:40 AM #1
Junior Member
Joined
May 2006
From
Sydney, Australia
Posts
44
Series help
I have this formula:
${c_n}^2 = \frac{1}{2}{c_{n-1}}^2$
How do I convert this to a series with $\sum$
From n = 1 to n = 10
chancey
I have this formula:
${c_n}^2... | 5 | [
-0.05810546875,
0.018310546875,
0.056884765625,
-0.0050048828125,
-0.0693359375,
0.0947265625,
-0.08056640625,
0.07568359375,
0.0322265625,
-0.0206298828125,
0.005401611328125,
-0.050537109375,
-0.08154296875,
0.0361328125,
-0.0244140625,
-0.033447265625,
0.054443359375,
0.00127410... | 37,236 | 37236 | |
Math Forum Discussions
Math Forum
Ask Dr. Math
Discussions
Internet Newsletter
MathTools
Teacher2Teacher
Teacher Exchange
Workshops
Search All of the Math Forum:
Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.
Topic: A home-made routine for the Normal Cumulative Dist... | 5 | [
-0.046630859375,
-0.01806640625,
0.004852294921875,
0.08447265625,
0.033935546875,
-0.07763671875,
-0.06640625,
0.047607421875,
0.04541015625,
0.01953125,
-0.0157470703125,
-0.040283203125,
0.037109375,
0.03369140625,
-0.033935546875,
-0.091796875,
0.044921875,
-0.08251953125,
0.... | 37,237 | 37237 | |
Pairing used in Lefschetz duality
up vote 7 down vote favorite
3
I am thinking about the precise formulation of the Lefschetz duality for the relative cohomology. If I understand this Wikipedia article correctly, there is an isomorphism between $H^k(M, \partial M)
$ and $H_{n-k}(M)$ and hence (I suppose) a non-degener... | 5 | [
-0.03271484375,
0.042724609375,
0.000316619873046875,
-0.0703125,
-0.0272216796875,
0.10400390625,
-0.00531005859375,
0.03564453125,
-0.0703125,
-0.07861328125,
0.0277099609375,
0.0498046875,
-0.046142578125,
-0.03271484375,
0.0189208984375,
0.0869140625,
-0.03076171875,
0.09179687... | 37,238 | 37238 | |
Dividing a Line Segment
Date: 03/08/2001 at 02:14:08
From: Ekmel
Subject: Geometry - angle bisector
How do I divide a line segment into a 2:3 ratio using the angle
bisector?
So far:
draw auxilary line
construct parallel line
choose a random compass setting and mark it off
Date: 03/08/2001 at 15:28:20
From:... | 4 | [
-0.035400390625,
0.03857421875,
-0.0026092529296875,
-0.031494140625,
-0.01104736328125,
-0.041259765625,
-0.07568359375,
-0.0361328125,
0.072265625,
-0.03955078125,
0.04296875,
-0.08251953125,
-0.068359375,
0.012939453125,
0.0517578125,
0.038818359375,
-0.1259765625,
0.05249023437... | 37,239 | 37239 | |
Volume of a Tetrahedron
Date: 02/27/2003 at 15:48:16
From: Haze
Subject: Tetrahedron
How do I find the volume of a tetrahedron?
Date: 03/02/2003 at 18:43:35
From: Doctor Ian
Subject: Re: Tetrahedron
Hi Haze,
The most straightforward way to find it is to apply the Pythagorean
theorem several times.
Here is an equ... | 5 | [
0.0615234375,
0.1064453125,
0.008544921875,
-0.0732421875,
-0.010009765625,
-0.0262451171875,
-0.0284423828125,
0.064453125,
0.02587890625,
0.0028533935546875,
-0.03662109375,
-0.08837890625,
-0.017822265625,
0.0244140625,
-0.015380859375,
-0.02392578125,
-0.0052490234375,
0.003906... | 37,240 | 37240 | |
Boats and Streams-Aptitude preparation Questions and Answers-19812Boats and StreamsBoats and Streams
Boats and Streams
Share
5447 views, 14 found it useful
Learn and practice Quantitative courses, Quantitative, Aptitude preparation, Boats and Streams questions and answers with explanation for interview,placemen... | 4 | [
-0.046142578125,
0.0341796875,
-0.046875,
0.0014190673828125,
-0.01470947265625,
-0.0130615234375,
-0.03515625,
0.0223388671875,
-0.043701171875,
-0.0230712890625,
0.0206298828125,
-0.02490234375,
-0.02880859375,
0.025146484375,
-0.0537109375,
0.041015625,
-0.041748046875,
0.029418... | 37,241 | 37241 | |
Statistics question - I think it is about a z test
August 31st 2010, 11:49 AM #1
Newbie
Joined
Apr 2010
Posts
17
Statistics question - I think it is about a z test
Sorry, but this is too difficult. I need to work on my calculator, but I am not confident how:
The weights, in kg, of men in a random s... | 4 | [
0.0169677734375,
0.09814453125,
0.051025390625,
0.0224609375,
-0.037353515625,
-0.07080078125,
-0.00439453125,
0.01080322265625,
-0.076171875,
0.02490234375,
0.0556640625,
-0.046142578125,
0.04150390625,
0.0537109375,
0.044189453125,
-0.03564453125,
0.0439453125,
-0.011962890625,
... | 37,242 | 37242 | |
Projectiles using calculus
August 25th 2010, 04:43 AM #1
Member
Joined
Dec 2008
From
Australia
Posts
161
Projectiles using calculus
Show that to hit a target h metres above what was its maximum range position on
a horizontal plane, the initial speed of a projectile projected at the same angle as ... | 4 | [
0.021728515625,
0.004791259765625,
-0.01177978515625,
-0.072265625,
0.00323486328125,
0.01055908203125,
-0.10498046875,
0.004638671875,
-0.042236328125,
0.059814453125,
0.087890625,
0.0223388671875,
-0.0194091796875,
0.053955078125,
-0.0020599365234375,
0.07275390625,
0.0712890625,
... | 37,243 | 37243 | |
Complete metric on the space of Jordan curves?
up vote 13 down vote favorite
8
I was interested in putting a complete metric on the space of Jordan curves. Say, just planar Jordan curves contained in $B(\bar{0}, 2) \backslash B(\bar{0}, 1)$ which separates $\bar{0}$ and
infinity.
As we can see, the standard Hausdorff... | 4 | [
-0.037109375,
-0.05224609375,
-0.05712890625,
-0.054931640625,
-0.1298828125,
-0.0078125,
0.045654296875,
0.025146484375,
0.08203125,
-0.042724609375,
-0.005706787109375,
-0.0279541015625,
-0.06494140625,
0.03271484375,
-0.012939453125,
-0.115234375,
0.0225830078125,
-0.00946044921... | 37,244 | 37244 | |
Poisson Distribution
June 3rd 2009, 09:16 PM #1
Poisson Distribution
This problem considers the Poisson distribution, a probability distribution for a discrete random variable which was first used by Simeon-Denis Poisson to describe seemingly random criminal
events in 1837 in Paris. If independent events have... | 4 | [
-0.052001953125,
-0.005584716796875,
-0.033447265625,
-0.05859375,
0.00762939453125,
0.04833984375,
0.09228515625,
-0.061279296875,
0.10107421875,
0.06396484375,
0.12353515625,
0.004058837890625,
-0.0205078125,
-0.005340576171875,
-0.0201416015625,
-0.07958984375,
0.01348876953125,
... | 37,245 | 37245 | |
Number Theory problem
June 26th 2010, 02:56 PM
shostakovich
Number Theory problem
hello number theorists ,
I'm beginner and I have troubles with this lemma which i belive it is true ,
let $p$ a prime number greater than $3$, and let $P$ be the set of primes less than $p$, show that there exist $p_1 , p... | 5 | [
-0.08642578125,
-0.05322265625,
0.03076171875,
-0.09521484375,
0.09033203125,
0.0196533203125,
0.1396484375,
0.10107421875,
-0.01019287109375,
-0.035400390625,
-0.068359375,
0.072265625,
0.048828125,
0.0247802734375,
0.042236328125,
-0.02734375,
-0.0213623046875,
-0.0218505859375,
... | 37,246 | 37246 | |
Optimizing Advertising
Date: 10/15/2003 at 05:00:24
From: Matthew
Subject: Optimisation
A firm with a total income of $50,000 per year currently spends
$10,000 per year on advertising. It finds that by doubling advertising
expenditure, total income increases by twenty percent. By maximising
the total residue of incom... | 5 | [
-0.00421142578125,
-0.002838134765625,
0.027099609375,
-0.0245361328125,
0.04443359375,
-0.038818359375,
0.09375,
0.07666015625,
-0.00014972686767578125,
0.08154296875,
0.07470703125,
0.050537109375,
0.03515625,
0.0966796875,
0.029052734375,
0.048095703125,
-0.06103515625,
0.083984... | 37,247 | 37247 | |
Rate of Change
May 1st 2008, 03:56 PM #1
Newbie
Joined
Mar 2008
Posts
16
Rate of Change
Can someone assist me with this one:
A person obeserves an airplane directly overhead which moves at 500ft/sec at an altitue of 8000ft. The plane maintains constant altitude and horizontal velocity. What is the r... | 5 | [
0.041015625,
0.08056640625,
-0.0177001953125,
-0.052734375,
0.004119873046875,
0.00982666015625,
-0.0712890625,
0.037841796875,
-0.02587890625,
0.029541015625,
0.08984375,
0.051025390625,
-0.03271484375,
0.03369140625,
-0.0712890625,
0.1015625,
-0.027587890625,
0.031494140625,
-0... | 37,248 | 37248 | |
Natural Log of X^x.
November 17th 2013, 05:39 PM #1
Member
Joined
May 2011
Posts
133
Thanks
2
Natural Log of X^x.
$f=x^x$
$ln(f)=x*ln(x)$
I am aware of the proof that:
$\frac{d}{dx}a^x=ln(a)*a^x$
but ln(f)=x*ln(x) seems to be following a different format since it would have to be t... | 5 | [
0.01263427734375,
-0.09375,
0.0181884765625,
0.050537109375,
0.0308837890625,
-0.050537109375,
0.076171875,
-0.003082275390625,
0.06201171875,
0.0830078125,
0.08642578125,
-0.0146484375,
0.031982421875,
0.05322265625,
0.0263671875,
0.0286865234375,
-0.1611328125,
0.03662109375,
-... | 37,249 | 37249 | |
Reasoning under Uncertainty in Social Reputation Systems The
Reasoning under Uncertainty in Social Reputation Systems:
The Advisor-POMDP
Kevin Regan
Abstract
This paper e... | 4 | [
-0.07568359375,
-0.0255126953125,
-0.07275390625,
-0.09130859375,
-0.04833984375,
-0.01531982421875,
0.1435546875,
0.0262451171875,
0.08984375,
0.00001990795135498047,
0.041259765625,
-0.03173828125,
0.1484375,
-0.01318359375,
-0.033447265625,
-0.041015625,
0.045166015625,
-0.02905... | 37,250 | 37250 | |
Text-Independent Speaker Identification Using Hidden Markov Model
World of Computer Science and Information Technology Journal (WCSIT)
ISSN: 2221-0741
Vol. 2, No. 6, 203-208, 2012
Text-Independent Speaker Identification Using
Hidden Markov Model
... | 4 | [
-0.0869140625,
0.0115966796875,
-0.047607421875,
-0.05810546875,
0.0274658203125,
0.052490234375,
0.0634765625,
-0.06494140625,
0.0751953125,
-0.10595703125,
-0.032958984375,
-0.000453948974609375,
0.0576171875,
-0.043212890625,
-0.0262451171875,
-0.06640625,
-0.0245361328125,
0.00... | 37,251 | 37251 | |
Local model of virtual fundamental cycle
up vote 4 down vote favorite
1
The following baby version of virtual fundamental cycle is well known:
Let $M\subset V$ be the zero locus of a section $s$ of a vector bandle $E \to V$, in general $s$ is not transversal to the zero section and $M$ does not have the expected dime... | 5 | [
0.023681640625,
0.0284423828125,
0.01251220703125,
0.0228271484375,
0.057861328125,
0.08984375,
-0.05078125,
0.04541015625,
0.00885009765625,
-0.0201416015625,
0.1201171875,
-0.04638671875,
-0.049072265625,
-0.0205078125,
0.057861328125,
-0.022705078125,
0.0194091796875,
0.05590820... | 37,252 | 37252 | |
Plz Help is required in expectation
September 23rd 2008, 04:09 PM
UMD
Plz Help is required in expectation
I shall be very grateful to anyone who can guide me regarding the solution of the following problems.
Show that if Xn converges to X in rth mean ( r>=1), then E ( |Xn^r| )converges to E ( | X ^r |)
... | 5 | [
-0.0184326171875,
0.00103759765625,
0.0118408203125,
-0.034912109375,
0.0693359375,
0.06298828125,
0.1044921875,
0.04833984375,
-0.08056640625,
0.031005859375,
0.0123291015625,
0.08251953125,
0.046630859375,
0.01177978515625,
-0.0230712890625,
0.017822265625,
-0.044189453125,
-0.06... | 37,253 | 37253 | |
Complex-Residue Theorem
May 3rd 2010, 02:51 AM #1
Member
Joined
Dec 2009
Posts
171
Complex-Residue Theorem
How can I calculate the residue at 0 of the next function:
$f(z)=\frac{1}{z^2 \sin z}$ ??
Hope you'll be able to help me
Thanks a lot!
By calculating the residue "at infinity" of $... | 5 | [
-0.0145263671875,
0.0498046875,
-0.05419921875,
0.166015625,
0.1025390625,
-0.01531982421875,
0.003387451171875,
0.0025787353515625,
0.05419921875,
0.08154296875,
0.02197265625,
0.0057373046875,
0.005859375,
0.07763671875,
-0.061279296875,
-0.017578125,
0.03125,
-0.010986328125,
... | 37,254 | 37254 | |
Finding a set of Parametric equation
December 9th 2009, 07:25 AM #1
Newbie
Joined
Dec 2009
Posts
11
Find a set of parametric equation for the line passing through the points (2,3) and (6,-3).
this is an even number in my book and there are no examples in this section on how to find a parametric equ... | 4 | [
-0.04638671875,
-0.080078125,
-0.07470703125,
-0.083984375,
0.032470703125,
0.022216796875,
0.0019683837890625,
0.03466796875,
-0.0166015625,
-0.000499725341796875,
0.07958984375,
-0.00872802734375,
0.007568359375,
-0.087890625,
0.02685546875,
0.0791015625,
-0.134765625,
-0.0815429... | 37,255 | 37255 | |
in
I have been experimenting for quite some time trying to learn more about PID control. Most of my lab experiments are performed on a small heater application (basically a soldering iron) whose
temperature I can control with an Allen-Bradley PLC-5/20. For the experiments covered in this post I am using the Dependen... | 4 | [
-0.08837890625,
-0.031005859375,
-0.06591796875,
0.043701171875,
-0.10302734375,
0.08544921875,
-0.006500244140625,
0.04345703125,
0.0162353515625,
-0.00115203857421875,
0.00421142578125,
0.06396484375,
0.09228515625,
-0.07373046875,
0.06787109375,
0.0240478515625,
0.034423828125,
... | 37,256 | 37256 | |
Diagonalizing some matrices arising from Fourier transform on $S_n$.
up vote 12 down vote favorite
3
Consider the function $f$ on $S_n$ which equals $1/n$ on all adjacent transpositions $(i,i+1)$, where we let $n+1 = 1$, and $0$ otherwise, and its Fourier transform $\hat{f}(\rho)$ evaluated at the
irreducible represen... | 4 | [
-0.047607421875,
-0.00390625,
-0.0830078125,
-0.023193359375,
0.031005859375,
0.10791015625,
-0.07666015625,
-0.037109375,
0.00439453125,
-0.06396484375,
-0.03369140625,
0.052978515625,
0.0361328125,
-0.01190185546875,
-0.06591796875,
-0.08984375,
-0.0166015625,
0.014892578125,
-... | 37,257 | 37257 | |
Three Sample SAT Questions
Date: 11/12/96 at 19:00:38
From: mike
Subject: SAT math
Please help me with the following SAT questions:
(1) How do you find the diagonal in a square?
(2) If (x+2)^2 = 25 and x>0 what is the value of x^2?
(3) How do I do this one: 4 over n, 5 over n, and 7 over n. It asks
if each of... | 4 | [
0.01458740234375,
0.1181640625,
0.01361083984375,
0.00164794921875,
-0.0162353515625,
0.07861328125,
-0.031982421875,
0.0517578125,
-0.00921630859375,
-0.0024261474609375,
-0.021728515625,
0.017822265625,
-0.02294921875,
0.0034332275390625,
-0.021240234375,
-0.012451171875,
-0.033935... | 37,258 | 37258 | |
Need help solving for this matrix
October 28th 2010, 12:55 AM
addieandjack
Need help solving for this matrix
FIRST LET ME SAY: I would like to be able to do this problem for myself, so if you want to actually do the problem, please don't post the answer right away so I can try it myself first.
The problem ... | 4 | [
0.01239013671875,
-0.0191650390625,
-0.103515625,
-0.01531982421875,
-0.00982666015625,
0.005279541015625,
0.01123046875,
-0.06103515625,
-0.035400390625,
0.008056640625,
0.051513671875,
0.00982666015625,
-0.0262451171875,
-0.0179443359375,
-0.058349609375,
0.01470947265625,
-0.00244... | 37,259 | 37259 | |
Modular curves of genus zero and normal forms for elliptic curves
up vote 20 down vote favorite
15
This is maybe the first question I actually need to know the answer to!
Let $N$ be a positive integer such that $\mathbb{H}/\Gamma(N)$ has genus zero. Then the function field of $\mathbb{H}/\Gamma(N)$ is generated by a ... | 4 | [
-0.03857421875,
-0.0179443359375,
-0.0341796875,
-0.0198974609375,
0.01611328125,
0.0064697265625,
0.0115966796875,
0.017333984375,
0.05810546875,
-0.126953125,
0.1357421875,
-0.0361328125,
-0.05224609375,
-0.047607421875,
0.0191650390625,
-0.00579833984375,
-0.061279296875,
-0.108... | 37,260 | 37260 | |
equations of line and plane
December 2nd 2007, 07:58 PM #1
Junior Member
Joined
Sep 2007
Posts
51
equations of line and plane
Find an equation for the plane consisting of all points that are equidistant from the points (-4,2,1) and (2,-4,3)
can someone show me how this is done?
what is equidista... | 4 | [
-0.0245361328125,
0.0269775390625,
-0.049072265625,
-0.10498046875,
-0.02734375,
0.0034637451171875,
0.0654296875,
0.09033203125,
0.037109375,
-0.03564453125,
0.019287109375,
-0.044921875,
0.052734375,
0.03173828125,
-0.1005859375,
-0.05029296875,
0.0027618408203125,
-0.12890625,
... | 37,261 | 37261 | |
Cuboid tank help
November 28th 2009, 04:55 PM #1
Junior Member
Joined
Apr 2009
Posts
38
Cuboid tank help
A cuboid tank is open at the top and the internal dimensions of its base are x m and 2x m.
The height is h m.
The volume of the tank is V cubic metres and the volume is fixed. Let S mē denote ... | 4 | [
0.017822265625,
0.052978515625,
-0.0142822265625,
-0.056396484375,
0.0556640625,
0.0296630859375,
-0.07958984375,
0.10302734375,
-0.0654296875,
-0.037353515625,
-0.037353515625,
-0.0164794921875,
0.06787109375,
-0.02978515625,
-0.04248046875,
0.057861328125,
0.0281982421875,
0.0267... | 37,262 | 37262 | |
Math Help
January 18th 2007, 06:33 PM #1
Banned
Joined
Jan 2007
Posts
315
Find k
An archer shoots an arrow into the air such that its height at any time, t, is given by the function h(t) = -16t^2 + kt + 3. If the maximum height of the arrow occurs at time t = 4, what is the
value of k?
(1) 128 ... | 4 | [
0.041259765625,
0.05712890625,
-0.006744384765625,
-0.049072265625,
-0.09033203125,
-0.0145263671875,
-0.01287841796875,
0.08984375,
-0.022216796875,
0.03466796875,
0.056640625,
0.041015625,
0.057373046875,
0.05126953125,
-0.04150390625,
0.0791015625,
-0.007476806640625,
-0.0201416... | 37,263 | 37263 | |
Is this statement which relates the Fourier transform of a function to its singularities correct?
up vote 18 down vote favorite
3
I am working on a problem, which would possibly relate the Fourier transform/series with the jump singularities of the function where the function itself or one of its derivatives jump. ((s... | 4 | [
-0.07666015625,
-0.036376953125,
0.051025390625,
0.000263214111328125,
0.091796875,
0.076171875,
-0.000762939453125,
0.04150390625,
-0.0164794921875,
0.0255126953125,
0.0245361328125,
0.11083984375,
-0.07275390625,
-0.031005859375,
0.044677734375,
0.046875,
-0.12890625,
-0.02661132... | 37,264 | 37264 | |
Aperformance Ratings of an Autocovariance Base Estimator (ABE) in the Estimation of GARCH Model Parameters When the Normality Assumption is Invalid
INTRODUCTION
The assumption of constant variance in the traditional time series models of ARMA is a major impediment to their applications in financial time series data wh... | 4 | [
-0.08642578125,
-0.036376953125,
0.08984375,
0.044921875,
-0.03271484375,
0.003631591796875,
-0.02685546875,
0.018798828125,
0.052734375,
0.006072998046875,
0.001556396484375,
0.04736328125,
-0.060791015625,
-0.0107421875,
-0.072265625,
-0.052734375,
-0.0023651123046875,
-0.0236816... | 37,265 | 37265 | |
find the derivative
October 14th 2008, 09:28 AM #1
Junior Member
Joined
Sep 2007
Posts
55
find the derivative
i'm having some problem differentiating this function. the answer says (-1/3)x^(-5/3) but the answer i'm getting is (-1/3)(square root 2)(x)^(-5/3)
the function is this:
1/ cube root o... | 5 | [
0.01141357421875,
-0.10595703125,
0.00933837890625,
0.050048828125,
-0.060791015625,
-0.10595703125,
-0.0137939453125,
0.042724609375,
0.0849609375,
0.028564453125,
0.07568359375,
-0.031982421875,
0.004119873046875,
0.07861328125,
0.035400390625,
0.06201171875,
-0.0016937255859375,
... | 37,266 | 37266 | |
mistakes in practical electronics for inventors
Typos and Mistakes Found in Practical Electronics for Inventors, 2 nd ed., by Paul Scherz (McGraw-Hill, 2007)
Most of the items on this errata sheet were compiled by Martin Ligare during the spring semester of 2008 during the teachi... | 5 | [
-0.15234375,
0.052978515625,
0.08544921875,
0.006591796875,
-0.001617431640625,
0.00994873046875,
0.036376953125,
0.07666015625,
-0.087890625,
0.015625,
0.09814453125,
0.044189453125,
0.06982421875,
-0.0732421875,
-0.08935546875,
0.038818359375,
-0.09326171875,
0.018310546875,
0.... | 37,267 | 37267 | |
Give the quadratic approx. to sqrt(25 + h)...
November 30th 2012, 01:58 PM
sfspitfire23
Give the quadratic approx. to sqrt(25 + h)...
Hi guys, am wondering if my reasoning is correct -
Give the quadratic approx. to sqrt(25 + h) and discuss how this approx compares to the first order approximation-
I st... | 4 | [
-0.01202392578125,
0.008544921875,
0.072265625,
-0.034423828125,
-0.005706787109375,
-0.01806640625,
-0.0654296875,
0.043701171875,
0.00543212890625,
0.03564453125,
0.09423828125,
0.04052734375,
0.01458740234375,
-0.06884765625,
-0.033447265625,
0.06640625,
0.0030059814453125,
0.01... | 37,268 | 37268 | |
Homework Help
Posted by lisa on Thursday, November 2, 2006 at 11:19pm.
it is called completing the square
here is the equation 4x^2-4x+1=9 if anyone can help me please do okay i really need ot understand this
4x^2-4x+1=9
Move the numbers to the other side.
4x^2 -4x = 9-1
4x^2 -4x = 8
Now factor out 4 to make things... | 4 | [
0.0225830078125,
0.031494140625,
0.0634765625,
0.0673828125,
0.004425048828125,
0.05029296875,
0.01214599609375,
0.0322265625,
-0.00958251953125,
-0.0927734375,
0.0181884765625,
0.03955078125,
0.02734375,
0.07080078125,
-0.062255859375,
0.027099609375,
-0.033447265625,
0.0257568359... | 37,269 | 37269 | |
Path Integral
May 26th 2010, 12:48 PM #1
Newbie
Joined
May 2010
Posts
1
Path Integral
I'm having some issues with this path integral.
The vector field is F=<x,-y,-z>
The path is defined by c(t)=(sint, cost, t)
and t is from 0 to 3pi/2
How I have it set up, it turns out to be the integral... | 4 | [
-0.0274658203125,
0.0067138671875,
-0.04736328125,
0.00909423828125,
-0.01007080078125,
-0.04541015625,
-0.0126953125,
0.06982421875,
-0.0286865234375,
0.0703125,
-0.00396728515625,
0.01324462890625,
-0.00909423828125,
0.0198974609375,
-0.0223388671875,
-0.01251220703125,
-0.03173828... | 37,270 | 37270 | |
Comparing algebraic group orbits over big and small algebraically closed fields
up vote 13 down vote favorite
6
For an affine algebraic group $G$ it's often convenient (and harmless) to work concretely over an algebraically closed field of definition $k$ while identifying $G$ with its group of rational points
over $k... | 4 | [
-0.07080078125,
0.060302734375,
0.0034637451171875,
0.048095703125,
-0.0006866455078125,
-0.0634765625,
0.053955078125,
0.0133056640625,
0.05810546875,
-0.023681640625,
-0.029541015625,
0.0966796875,
-0.0625,
-0.0732421875,
-0.039306640625,
0.01324462890625,
-0.047119140625,
0.0240... | 37,271 | 37271 | |
identify the curve
April 5th 2007, 12:36 PM #1
Member
Joined
Oct 2006
Posts
88
identify the curve
identify the curve by finding a Cartesian equation for the curve.
r=3sin(theta)
how do you get a circle of radius 3/2 centered at (0, 3/2)?
i got
r^2=3rsin(theta)
x^2+y^2=3y
did i... | 4 | [
-0.02587890625,
-0.06787109375,
-0.166015625,
-0.0146484375,
0.0302734375,
-0.0294189453125,
-0.078125,
0.08740234375,
0.0869140625,
-0.06396484375,
0.050048828125,
0.006683349609375,
-0.061767578125,
0.0380859375,
-0.0027618408203125,
0.019287109375,
-0.173828125,
-0.052490234375,... | 37,272 | 37272 | |
Boxes of Candy
January 14th 2007, 04:52 AM #1
Banned
Joined
Jan 2007
Posts
315
Boxes of Candy
The monthly revenue achieved by selling x boxes of candy is figured to be
x(5 - 0.05x) dollars. The wholesale cost of each box of candy is $1.50. How many boxes must be sold each month to achieve a profit of... | 4 | [
0.053955078125,
0.1044921875,
0.01287841796875,
-0.036865234375,
-0.12109375,
0.0306396484375,
0.0274658203125,
0.052734375,
-0.036376953125,
0.0830078125,
-0.004669189453125,
0.00037384033203125,
0.09423828125,
-0.00171661376953125,
0.053466796875,
0.06591796875,
-0.007568359375,
... | 37,273 | 37273 | |
Help! A call to all those optimization whizzes.
October 26th 2008, 07:07 PM #1
Newbie
Joined
Oct 2008
Posts
1
Help! A call to all those optimization whizzes.
A rectangular swimming pool is to be built with an area of 1800 square feet. The owner wants 5-foot wide decks along either side and 10-foot wide d... | 5 | [
0.01470947265625,
0.09765625,
0.0091552734375,
-0.06787109375,
-0.01129150390625,
-0.032958984375,
0.06787109375,
0.04052734375,
-0.0986328125,
-0.053955078125,
-0.0576171875,
-0.07080078125,
-0.005279541015625,
0.138671875,
-0.02294921875,
0.09521484375,
0.01409912109375,
0.050048... | 37,274 | 37274 | |
Math Forum Discussions
Math Forum
Ask Dr. Math
Discussions
Internet Newsletter
MathTools
Teacher2Teacher
Teacher Exchange
Workshops
Search All of the Math Forum:
Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.
Topic: THE FREQUENCY OF THE PI VALUE IN POINT - Part 5: C... | 4 | [
-0.035888671875,
0.107421875,
0.01080322265625,
0.00982666015625,
-0.1279296875,
0.024658203125,
-0.037841796875,
0.023681640625,
0.06787109375,
0.0106201171875,
-0.015869140625,
-0.0311279296875,
0.014404296875,
-0.008544921875,
0.004547119140625,
-0.06689453125,
-0.05419921875,
-... | 37,275 | 37275 | |
Closed form or/and asymptotics of a hypergeometric sum
up vote 6 down vote favorite
1
Dear mathematicians,
I am a computer scientist wandering in the deep sea of combinatorics and asymptotics to pursue a recent interest in average case analysis of algorithms. In doing so, I designed the following double
summation: $$... | 5 | [
-0.002655029296875,
-0.01239013671875,
0.08544921875,
0.044189453125,
-0.05810546875,
-0.00151824951171875,
-0.0303955078125,
0.021240234375,
-0.03662109375,
-0.0211181640625,
-0.083984375,
-0.03125,
-0.03662109375,
-0.0654296875,
-0.01611328125,
0.07861328125,
0.033203125,
-0.0029... | 37,276 | 37276 | |
Flux across a surface
March 20th 2011, 02:26 AM #1
Member
Joined
Aug 2010
Posts
77
Flux across a surface
Find the flux of the field $\mathbf{F}$ across the portion of the sphere $x^2+y^2+z^2=a^2$ in the first octant in the direction away from the origin, where $\mathbf{F} = y\mathbf{i} -x\mathbf{j}
+... | 5 | [
-0.005859375,
0.0322265625,
0.0400390625,
-0.035888671875,
0.06787109375,
0.0245361328125,
0.0277099609375,
0.04248046875,
-0.0272216796875,
0.080078125,
-0.0096435546875,
0.051513671875,
-0.0341796875,
0.009765625,
-0.02587890625,
0.0108642578125,
-0.037353515625,
0.02587890625,
... | 37,277 | 37277 | |
Two kinds of orientability/orientation for a differentiable manifold
up vote 17 down vote favorite
13
Let $M$ be a differentiable manifold of dimension $n$. First I give two definitions of Orientability.
The first definition should coincide with what is given in most differential topology text books, for instance War... | 4 | [
-0.05859375,
0.04296875,
-0.054931640625,
-0.0255126953125,
0.022705078125,
0.11962890625,
-0.00445556640625,
-0.007659912109375,
0.0299072265625,
-0.0810546875,
0.10400390625,
0.059326171875,
0.036865234375,
-0.02294921875,
0.05859375,
0.0023651123046875,
-0.02490234375,
-0.003204... | 37,278 | 37278 | |
Simulink
What are the "best" predictors for a multiple linear regression (MLR) model? Without a theoretical basis for answering this question, models may, at least initially, include a mix of "potential"
predictors that degrade the quality of OLS estimates and confuse the identification of significant effects.
Ideall... | 5 | [
-0.047119140625,
-0.06103515625,
-0.04296875,
0.048583984375,
0.1279296875,
0.0341796875,
-0.0859375,
0.0067138671875,
0.0712890625,
-0.01141357421875,
0.00787353515625,
0.007080078125,
-0.0302734375,
-0.006134033203125,
0.018310546875,
-0.0458984375,
0.017333984375,
-0.00762939453... | 37,279 | 37279 | |
Alexandrov angles in Riemannian manifolds
up vote 4 down vote favorite
Dear all, I am teaching a course in Riemannian geometry, and I would like to prove some comparison theorems in the next lessons, building on the well-known theory of Jacobi fields, and of Rauch
comparison Theorem for Jacobi fields. I would like to ... | 4 | [
-0.0830078125,
-0.06689453125,
0.0908203125,
-0.0888671875,
0.04248046875,
-0.00157928466796875,
0.07421875,
0.0654296875,
0.055419921875,
-0.057373046875,
0.028564453125,
0.0301513671875,
0.01123046875,
-0.022705078125,
0.033203125,
-0.06689453125,
-0.045166015625,
0.013427734375,... | 37,280 | 37280 | |
Request for help with 2 triangles problem
May 28th 2010, 02:35 PM
EckCop
Request for help with 2 triangles problem
I have been trying to solve a problem; originally I was thinking of it as 2 circles, but it is basically a problem of triangles, please see the attached file:http://www.roughmustard.com/
problem... | 4 | [
-0.0228271484375,
0.107421875,
-0.06689453125,
-0.02880859375,
0.00836181640625,
-0.03076171875,
-0.055419921875,
0.0238037109375,
-0.06982421875,
-0.0001983642578125,
-0.038818359375,
-0.09619140625,
-0.06494140625,
0.0167236328125,
0.10546875,
0.05712890625,
-0.0830078125,
-0.046... | 37,281 | 37281 | |
Carmichael numbers
April 21st 2009, 08:18 PM #16
Senior Member
Joined
Apr 2009
From
Atlanta, GA
Posts
408
A new direction...
I’ve got you to $lcm(a_1,a_2,a_3)|gcd(a_2a_3+a_1a_3+a_1a_2 , a_1+a_2+a_3)$
Now, let’s keep going. Define $g=gcd(a_1,a_2,a_3)$ and let $u_1=a_1/g$ , $u_2=a_2/g$ , $u_3=a_3/... | 4 | [
-0.1513671875,
-0.0137939453125,
-0.052490234375,
-0.07666015625,
-0.002197265625,
-0.046630859375,
0.004119873046875,
-0.03173828125,
-0.04541015625,
-0.021240234375,
0.058837890625,
0.015869140625,
-0.016845703125,
-0.03857421875,
-0.0380859375,
0.025390625,
-0.050048828125,
0.09... | 37,282 | 37282 | |
[SOLVED] Find values of a, b and c such that limit ... is finite?
January 16th 2009, 07:40 PM
fardeen_gen
[SOLVED] Find values of a, b and c such that limit ... is finite?
Find values of a, b and c such that:
lim (cos 4x + a cos 2x + b)/x^4 = Finite
x --> 0
January 16th 2009, 08:46 PM
Isomorphism
... | 5 | [
-0.046875,
0.09716796875,
0.0020751953125,
0.09228515625,
-0.051025390625,
0.08837890625,
-0.018798828125,
-0.01470947265625,
-0.00775146484375,
-0.056640625,
0.08056640625,
-0.11865234375,
-0.059326171875,
0.00592041015625,
-0.021484375,
0.00051116943359375,
-0.0439453125,
0.00066... | 37,283 | 37283 | |
Graphing Complex and Real Numbers
Date: 02/26/2003 at 20:32:45
From: Paul Lehmbeck
Subject: Graphing Complex and Real Numbers
I have been finding the zeros for polynomial functions in class and I
have found real, imaginary, and complex numbers as the zeros. But when
I graph the zeros I run into a problem. Since on th... | 4 | [
-0.0947265625,
-0.004058837890625,
-0.07470703125,
0.06884765625,
-0.03466796875,
-0.031982421875,
-0.049072265625,
-0.006011962890625,
0.05810546875,
-0.0208740234375,
0.07568359375,
-0.0213623046875,
0.02978515625,
0.1376953125,
0.044921875,
-0.05810546875,
-0.056640625,
-0.01416... | 37,284 | 37284 | |
Tangent Line
June 2nd 2009, 10:39 AM #1
Member
Joined
May 2009
Posts
93
Tangent Line
Find an equation of the line that is tangent to the graph of f for the given value of x.
f(x)=(x^2-3)^5(2x-1)^3 x=2
I got the derivative 2(1-2x)^2(x^2-3)^4(13x^2-5x-9)
Then I plugged in 2 for x and I got 5... | 4 | [
-0.036376953125,
-0.04833984375,
0.0024566650390625,
-0.003204345703125,
-0.014404296875,
0.057373046875,
-0.002105712890625,
0.02001953125,
-0.0086669921875,
0.033203125,
0.06396484375,
-0.0625,
0.049072265625,
-0.0306396484375,
-0.033203125,
0.078125,
-0.07275390625,
-0.061035156... | 37,285 | 37285 | |
Math Help
January 4th 2009, 07:23 PM #1
Newbie
Joined
Jan 2009
Posts
15
confused
If $f'(x)=cos(x^2-1) and f(-1)=1.5, then f(5)= ?$
so far i have:
$\int_{-1}^5 cos(x^2-a) dx= f(5)-f(-1)$
i let $u=x^2-1$
$du=2x$
change the limits from x=5 to u=24, x=-1 to u=0
and have
$1/2... | 5 | [
0.00182342529296875,
0.0087890625,
0.06982421875,
0.0089111328125,
-0.0038299560546875,
-0.0133056640625,
-0.034912109375,
0.058349609375,
-0.0185546875,
0.0279541015625,
0.103515625,
-0.03369140625,
0.04052734375,
0.017578125,
-0.0517578125,
-0.068359375,
0.01116943359375,
-0.0561... | 37,286 | 37286 | |
Show that f is differentiable
December 15th 2009, 08:19 AM
thaopanda
Show that f is differentiable
Let f : $R^3 \rightarrow R^2$ be given by f ( $x_1, x_2, x_3$) = ( $x_3, x_1$). Show that f is differentiable at $X_0$ = (0,0,0) and find df( $X_0$).
I figured to use the definition so:
f(X) = f( $X_0$) +... | 5 | [
-0.009033203125,
-0.042724609375,
-0.07275390625,
-0.0498046875,
0.06494140625,
-0.059814453125,
0.00927734375,
0.02490234375,
0.022216796875,
0.048828125,
0.0791015625,
0.020263671875,
-0.048583984375,
-0.006500244140625,
0.01171875,
0.056640625,
-0.0286865234375,
0.0174560546875,... | 37,287 | 37287 | |
sin(t)*cos(t) convolution
March 21st 2010, 08:11 AM #1
Member
Joined
Jan 2010
Posts
133
sin(t)*cos(t) convolution
Hello everyone, what is the convolution of sin(t) with cos(t). The provided answer seems to be merely t/2.sin(wt)... However, the integral im getting includes this expression along with other... | 5 | [
-0.09619140625,
0.0281982421875,
0.021240234375,
-0.0284423828125,
0.1279296875,
0.0016326904296875,
0.03955078125,
-0.0113525390625,
-0.050537109375,
0.0166015625,
0.0419921875,
-0.056640625,
0.00250244140625,
0.01495361328125,
-0.03173828125,
-0.08984375,
-0.04638671875,
-0.02880... | 37,288 | 37288 | |
Integration by parts
March 2nd 2013, 06:42 PM #1
Newbie
Joined
Sep 2012
From
Ohio
Posts
14
Integration by parts
I went wrong somewhere here. First let's say:
$L=\int e^{-5x}sin(x)dx$
Let's integrate that by parts. Let's start with:
$u=e^{-5x}$
$u'=-5e^{-5x}$
$v=-cosx$
$v'=sin... | 5 | [
-0.06298828125,
0.00823974609375,
0.1552734375,
-0.044189453125,
0.10546875,
-0.0308837890625,
-0.01202392578125,
-0.055419921875,
-0.06787109375,
0.024658203125,
0.080078125,
-0.04443359375,
0.01336669921875,
-0.00099945068359375,
0.0167236328125,
-0.0306396484375,
0.0223388671875,
... | 37,289 | 37289 | |
Analysis - Continuous Functions
March 6th 2010, 12:14 PM #1
Newbie
Joined
Mar 2010
Posts
1
Analysis - Continuous Functions
Right, i'm doing semester 2 analysis and i'm completely stumped, have no idea where to start on this question:
Let f be a map from an interval I to the reals (not necessarily con... | 5 | [
-0.016357421875,
0.0634765625,
0.01544189453125,
0.00927734375,
0.0146484375,
0.08056640625,
0.031982421875,
0.02099609375,
-0.06787109375,
-0.042236328125,
-0.051025390625,
-0.0595703125,
0.031982421875,
0.05029296875,
0.05908203125,
0.03173828125,
0.02587890625,
-0.019775390625,
... | 37,290 | 37290 | |
Cannot figure out systems of equations problem
January 15th 2014, 04:49 PM #1
Junior Member
Joined
Feb 2013
From
PA
Posts
26
Cannot figure out systems of equations problem
I have the following problem to solve:
Solve these equations for both v and x:
3v + 4 x = 3,
7v - 3 x = 3
The w... | 4 | [
0.00421142578125,
-0.023193359375,
-0.06787109375,
0.029052734375,
-0.0220947265625,
0.016357421875,
-0.02685546875,
-0.02978515625,
-0.008056640625,
0.048583984375,
0.046875,
-0.0966796875,
0.0225830078125,
0.07568359375,
0.004730224609375,
-0.037353515625,
-0.078125,
0.0174560546... | 37,291 | 37291 | |
Struggling with a rate of change problem.
February 12th 2013, 09:53 PM
KhanDisciple
Struggling with a rate of change problem.
A spherical snowball is melting in such a way that its diameter is decreasing at rate of 3 cm/min. At what rate is the volume of the snowball decreasing when the diameter is 11cm?
Whe... | 5 | [
-0.02392578125,
0.057373046875,
0.0311279296875,
-0.032958984375,
0.0167236328125,
-0.030029296875,
-0.0400390625,
0.09716796875,
0.055419921875,
0.00830078125,
-0.006927490234375,
0.017578125,
0.01092529296875,
0.059326171875,
0.0517578125,
-0.0308837890625,
-0.007415771484375,
0.... | 37,292 | 37292 | |
How to prove this by induction ?
Induction is not suitable for proving this result. The best method is to take logs and use the well-known inequality $\ln(1+x)\leqslant x.$ This tells you that $\sum_{k=1}^n\ln(1+10^{-k})\leqslant\
sum_{k=1}^n10^{-k} = {\textstyle\frac19}(1-10^{-n})<{\textstyle\frac19}.$ Therefore $\pro... | 5 | [
-0.01251220703125,
0.04052734375,
0.06005859375,
-0.06494140625,
0.019287109375,
-0.052978515625,
0.0245361328125,
0.15234375,
-0.01483154296875,
0.009765625,
-0.10302734375,
-0.0380859375,
0.06884765625,
0.0673828125,
-0.0849609375,
-0.0274658203125,
0.03564453125,
0.03076171875,
... | 37,293 | 37293 | |
help, age word problem.
November 11th 2008, 10:11 AM #1
Newbie
Joined
Nov 2008
Posts
2
help, age word problem.
In 5 years, Dad will be three times as old as his daughter Jill will be then. If the sum of their present ages is 50, how old are they now?
This is the question and this is my answer but ... | 4 | [
-0.0263671875,
0.06787109375,
-0.008544921875,
-0.04736328125,
-0.02197265625,
0.06396484375,
-0.03515625,
-0.042236328125,
-0.0673828125,
0.076171875,
0.0830078125,
-0.0057373046875,
0.039794921875,
0.07177734375,
0.07861328125,
0.1240234375,
-0.08349609375,
0.0303955078125,
-0.... | 37,294 | 37294 | |
McGraw-Hills Taxation Of Individuals And Business... Textbook Solutions | Chegg.com
Question:
Gerry (age 56) and Elaine (age 54) have been married for 12 years and file a joint tax return. The couple lives in an apartment in downtown Manhattan. Gerry’s father, Mortey, recently retired from
Del Boca Vista Corporation ... | 5 | [
-0.040771484375,
0.0205078125,
-0.08837890625,
-0.1083984375,
-0.07421875,
0.125,
0.016357421875,
0.038330078125,
-0.033935546875,
-0.020263671875,
-0.0177001953125,
0.057373046875,
-0.05224609375,
-0.037109375,
0.037353515625,
0.080078125,
0.0308837890625,
0.01318359375,
-0.0220... | 37,295 | 37295 | |
Poisson problem - Help!
October 29th 2007, 06:29 PM
Deadstar
Poisson problem - Help!
Poisson question here thats causing me problems...
A mountain hut is available for walkers to stay overnight. Members of the organisation which owns the hut have keys; others can turn up in the hope a keyholder will let the... | 5 | [
0.043212890625,
0.033935546875,
0.0654296875,
-0.0245361328125,
-0.00982666015625,
-0.056884765625,
0.1337890625,
-0.06884765625,
0.11376953125,
0.0517578125,
0.1201171875,
-0.01312255859375,
0.06494140625,
-0.0069580078125,
0.07177734375,
-0.0174560546875,
-0.0169677734375,
-0.083... | 37,296 | 37296 | |
Number Theory GCD
let a,b,c in Z with (a,b)=1. If a divides c and b divides c, then ab divides c.
Hello, This one is "simple" ^^ If a divides c, then one can write c=ka where k is an integer. Similarly, one can write c=k'b where k' is also an integer. Thus we have the equality ka=k'b. So we can
deduce that b divides k... | 5 | [
-0.08740234375,
0.038330078125,
-0.034912109375,
0.01318359375,
0.033935546875,
-0.04541015625,
0.123046875,
0.01214599609375,
0.0157470703125,
-0.0006256103515625,
-0.0247802734375,
-0.000659942626953125,
0.06396484375,
0.0634765625,
-0.003326416015625,
-0.0478515625,
-0.05786132812... | 37,297 | 37297 | |
total torsion of closed curve on sphere
May 2nd 2013, 02:56 PM #1
Newbie
Joined
Dec 2012
From
Los Angeles
Posts
12
total torsion of closed curve on sphere
The total torsion of a unit speed curve γ : [a, b] → R3 is defined to be. ∫ τ(s) ds (bounds a to b), where τ(s) is the torsion of γ at the point γ... | 5 | [
-0.07568359375,
-0.02880859375,
-0.03515625,
-0.04931640625,
-0.0034027099609375,
0.047607421875,
0.08984375,
0.048828125,
0.052978515625,
0.01446533203125,
0.07080078125,
0.0040283203125,
0.005889892578125,
-0.052001953125,
-0.0361328125,
0.0240478515625,
-0.050537109375,
0.010498... | 37,298 | 37298 | |
What is modulo and Binomial?
July 5th 2011, 10:02 PM #1
Junior Member
Joined
Nov 2009
Posts
37
What is modulo and Binomial?
I saw this:
binomial(n+3, n) mod n = 1
How can I solve for a few of the values of n...
I have a basic understanding of mod such that if something were written: (242%9) I... | 5 | [
0.007537841796875,
-0.054443359375,
-0.052978515625,
0.00090789794921875,
-0.01385498046875,
-0.0146484375,
0.10693359375,
0.048583984375,
0.0025177001953125,
-0.007568359375,
-0.00136566162109375,
0.007568359375,
-0.0169677734375,
-0.003143310546875,
0.02685546875,
0.0072021484375,
... | 37,299 | 37299 |