content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Annoying Algebra/Indices question
January 10th 2009, 04:49 PM
MellowCandle
Annoying Algebra/Indices question
Hello there!
I found a Indices/Algebra question which I think the writer has answered incorrectly. It goes like this;
http://homepage.ntlworld.com/james.m...math/alg_q.gif
On the step from ... | 4 | [
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using a graphics calculator to find an area of two functions and integration
August 5th 2007, 12:17 AM #1
Newbie
Joined
Oct 2006
Posts
4
Hi,
I have a question that I would appreciate some help with.
I need to use my graphics calculator to find the area bound by y=x ^3 - 2x- 5x +3 and y=x ^2 -2x-3... | 4 | [
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Past exam questions
May 15th 2010, 09:41 AM
obesechicken13
Past exam questions
So I just passed my first year, but I failed calc 2... badly
I'll have to retake it next summer, but until then I would like to ask some questions that I saw on the 2009 exam.
The past exams can all be found at this website
... | 5 | [
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Time Dilation
2005-Nov-30, 08:30 AM #31
Order of Kilopi
Join Date
Nov 2002
Posts
6,238
madman
in all mainstream versions of time dilation that i've read about, the operation revolves around determining gamma.
Instead of reading about it, how about following the actual equations used in Einstein... | 4 | [
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vectorizing a non-explicit function in Matlab and Octave
up vote 2 down vote favorite
I want to vectorize a 3D function, but the function does not have an analytical expression. For instance, I can vectorize the function
F(x, y, z) = (sin(y)*x, z*y, x*y)
by doing something like
function out = Vect_fn(x, y,z)
... | 4 | [
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Greg need help with assignment
January 3rd 2009, 02:11 PM #1
Newbie
Joined
Dec 2008
From
Buffalo
Posts
7
Greg need help with assignment
17. A vendor reduces an item listed at $140 on July 1st by 20%, and then reduces it another 25% on September 1st. What is the sale price of the good after the la... | 4 | [
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Trigo - Showing
January 12th 2013, 04:42 PM
fActor
Trigo - Showing
1. Show that OM = 6 cos θ - 2 sin θ
2. Show that area of triangle OAM is 10 sin 2(θ + α)
[OM = R cos (θ + α)]
[AM = R sin (θ + α)]
3. Given that θ can vary, find the maximum value of the area of triangle OAM.
Refer to: http:/... | 5 | [
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Simulations of the instability of the m = 1 self-shielding diocotron mode in finite-length non-neutral plasmas :: Institutional Repository
Simulations of the instability of the m = 1 self-shielding diocotron mode in finite-length non-neutral plasmas
The "self-shielding" m = 1 diocotron mode in Malmberg-Pe... | 4 | [
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Toboggan-Based Intelligent Scissors with a Four-Parameter Edge Model :: Institutional Repository
Toboggan- Based Intelligent Scissors with a Four- Parameter Edge Model
Eric N. Mortensen ( enm@ cs. byu. edu) William A. Barrett ( barrett@ cs. byu. edu)
Brigham Young University
Abstract
Intelligent Scissors ... | 4 | [
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General formula for normal moments
Yesterday I wrote about how to find moments of the normal distribution using Sage. Then GlennF left a comment saying it’s not too hard to work out the moments analytically and outlined a proof. I’ll
fill in a few details here.
First, start with a standard normal distribution Z. That... | 4 | [
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Thoughts needed for this "proof" of riemann s hypothesis
August 14th 2010, 12:56 PM #16
Could you explain a little more in depth? I'm a little too busy to sit and think. Also have you addressed the point I made about the zeros forming a cusp?
You cannot just believe something like that. You need to rigorously... | 4 | [
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catadioptric_telescopes
10.2. CATADIOPTRIC TELESCOPES WITH FULL-APERTURE CORRECTORS
Unlike sub-aperture catadioptric telescopes, combinations with spherical primary mirror are the most frequent form in arrangements with full-aperture corrector. Such... | 5 | [
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[SOLVED] Inequalities
January 20th 2010, 04:51 AM #1
Member
Joined
Dec 2009
Posts
180
[SOLVED] Inequalities
$2/x<x-1$
Since Im not allowed to multiply by x I canīt work it out.
Never done this kind of stuff before.
$2/x<x-1$ -> $2/x -x +1< 0$
I can wright it as (2-x^2+x)/x <0
Multip... | 4 | [
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Organic Chemistry at Penn State: Hybridization
The arithmetic behind hybrids is rather simple, like that of mixing drinks. In all cases we start with one s orbital (think of it as 100 mL of rum) and three p orbitals (three times 100-mL of pepsi).
Now what remains is to make some mixtures (hybrids or drinks). At the end... | 4 | [
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irrational exponents
March 20th 2009, 08:10 AM #1
Junior Member
Joined
Jun 2007
Posts
63
irrational exponents
hi,
i am trying to prove that the property x<y implies a^x<a^y for any real numbers x and y. i am having a little trouble using two sequences of rational numbers converging to x and y respec... | 5 | [
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Missing steps in book
May 22nd 2010, 09:25 AM #1
Junior Member
Joined
Dec 2009
Posts
38
Missing steps in book
I am trying to work out how to get from the integral below to the answer just below it.
$N = \frac{yR^2}{sin^2x} \int{(cosx-1)cosxsinx dx}$
with limits of pie and x
The answer is
... | 5 | [
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Need help with computing the volume of a solid by revolving lines
February 15th 2009, 08:50 AM #1
Newbie
Joined
Feb 2009
Posts
5
Need help with computing the volume of a solid by revolving lines
How do you compute the volume of a solid formed by revolving the given region about the lines?
the direct... | 5 | [
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Computation of the Rotation Matrix
This page is based on the article by Challis (1995).
Rotation of a Body
... | 4 | [
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Variance in Univariate Normal
Well, we need to use the fact that $E\left[X\right]=\int_{-\infty}^{\infty}\frac{1}{\sigma\sqrt{2\pi}}xe^{-\tfrac{1}{2}\left(\frac{x-\mu}{\sigma}\right)^2}\,dx=\mu$ Thus, $E\left[X^2\right]=\frac{1}
{\sigma\sqrt{2\pi}}\int_{-\infty}^{\infty}x^2e^{-\frac{1}{2}\left(\frac{x-\mu}{\sigma}\righ... | 5 | [
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Homework Help
Posted by patel on Thursday, October 20, 2011 at 6:02pm.
one side of a right triangle is 12.5 ft the perimeter is 38.7 ft. what is the length of the hypotenuse and the other unknown side?
• maths - Steve, Friday, October 21, 2011 at 10:29am
Let a,b, be the legs, and c the hypotenuse
a+b+c = ... | 4 | [
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Posts about CS on Area 777
This is one of those items I should have written about long ago: I first heard about it over a lunch chat with professor Guth; then I was in not one, but two different talks on it, both by Peter
Jones; and now, finally, after it appeared in this algorithms lecture by Sanjeev Arora I happen to... | 4 | [
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Important properties of prime numbers
┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬────────────────────────┐
│ ... | 5 | [
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Figure 2.1: Microdisc electrode
The basic principles of finite differences were introduced in Chapter 1. In this chapter it is shown how electrochemical material balance equations may be approximated by several subtly different
finite... | 4 | [
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The power of avoidance (preliminary results)
05-25-2008, 03:44 PM
Gwayne
@ Hypathia:
Some nice work there! I like the depth of the mathematics and the results give some reason to rethink some things.
But I would like to see the maths behind the "expected number of hits before n hits in a row" formula. I... | 5 | [
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16: Recursion
We have seen that functions allow us to organize and re-use parts of our code. We have also seen that functions can be defined in terms of other functions. In this lesson we learn that a function can
be defined in terms of itself! This very useful approach is called recursion. Legend has it that "to under... | 5 | [
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MathGroup Archive: September 2006 [00773]
[Date Index] [Thread Index] [Author Index]
Re: equation question
• To: mathgroup at smc.vnet.net
• Subject: [mg69973] Re: [mg69921] equation question
• From: Daniel Lichtblau <danl at wolfram.... | 5 | [
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and Correlation
Regression and Correlation
This file is part of a program based on the Bio 4835 Biostatistics class taught at Kean University in Union, New Jersey. The course uses the following text:
Daniel, W. W. 1999. Biostatistics... | 5 | [
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Dividing
March 19th 2009, 10:13 PM
jzellt
Dividing
Show that to find Rem(n,4) one just needs to replace n e N with the last two digits of n.
Why is it that only the last three digits of n e N need to be considered when calculating Rem(n,8)?
March 19th 2009, 11:07 PM
Nokio720
Hi jezllt,
I am not ... | 4 | [
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Square outiside circle outside quadrilateral
September 19th 2012, 03:42 PM #1
Newbie
Joined
Sep 2012
From
Australia
Posts
3
Square outiside circle outside quadrilateral
This was a problem on my brothers maths test, and it is doing my families collective heads in.
A quadrilateral with three sides... | 4 | [
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0.01068115234375,
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0.076171875,
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0.06982421875,
-0.03125,
-0.0064697265625,
0.0198974609375,
0.041259765625,
-0.005889892578125,
-0.0087890625,
-0.0159912109... | 2,628 | 2628 | |
roll theorem prove question..
March 9th 2009, 11:11 AM #1
MHF Contributor
Joined
Nov 2008
Posts
1,401
roll theorem prove question..
question :
suppose that to the quadratic equation x^2+px+q=0
has two roots $x_1<x_2$
prove that for
$<br /> \frac{\mathrm{d^n} }{\mathrm{d} x^n}[(x^2+px+q)^... | 5 | [
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Math (Calculus 121)
Posted by drwls on Monday, February 19, 2007 at 9:02pm.
The derivative tells you the slope at any point.
df/dx = 8 x^3 - 12 x
When x = 3, the slope is
m = 8*27 - 36 = 180
and the equation of the tangent line is
(y - 228) = 180*(x - 3)
y = 180 x - 540 + 228 = 180 x - 312
wow, that was absolut... | 4 | [
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-0.009826660... | 2,630 | 2630 | |
Rank of the given Matrix
January 21st 2010, 11:55 PM #1
Member
Joined
Feb 2009
From
Chennai
Posts
148
Rank of the given Matrix
Let $\bf{x}$ and $\bf{y} \in \mathbb{R}^{n}$ be 2 non zero column vectors. Let $\bf{y}^{T}$ denote the transpose of $\bf{y}$. Let $A=\bf{x} \bf{y}^{T}$. What is the rank of A... | 5 | [
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-0.0213623046875,
-0.0... | 2,631 | 2631 | |
Tiling A Rectangle With A Hint of Magic
up vote 30 down vote favorite
11
Here's a a famous problem:
If a rectangle $R$ is tiled by rectangles $T_i$ each of which has at least one integer sidelength, then the tiled rectangle $R$ has at least one integer side length.
$\mbox{}$
There are a number of proofs of this res... | 4 | [
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... | 2,632 | 2632 | |
connectedness
April 28th 2009, 05:07 PM
chaoticmath
connectedness
Hi,
Could anyone help me prove that " an open interval A is connected".
I tried proving it by contradiction and had 3 cases for A and taking two open sets U=(a,b) and V=(c,d)
case 1: b<c and showed it was impossible for A to be in U un... | 5 | [
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0.00762939453125,
-0.01287841796875,
-0.09179687... | 2,633 | 2633 | |
Parabola question
October 27th 2010, 11:19 AM #1
Member
Joined
Jan 2009
From
London
Posts
92
Parabola question
Find the equation of the parabola given that the focus is (6,0) and directrix is x=0.
No idea as we have had no class examples but I know about cartesian transformations.
Any help ... | 4 | [
0.0291748046875,
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-0.049560546875,
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-0.054199... | 2,634 | 2634 | |
Facebook’s Double Squares in Factor
Facebook has recently launched a puzzle programming contest (aka Facebook Hacker Cup). Since I always liked puzzles (I had already solved some of these puzzles -I may talk about them in another
post-), I decided to give it a try. With around 100.000 participants, I’m neither clever ... | 4 | [
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0.030517578125,
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0.0205078125,
-0.0067443847... | 2,635 | 2635 | |
Foundations and Principles, Second Edition
Introduction
Welcome to Dynamic Programming!
How to Read This Book
SCIENCE
Fundamentals
Introduction
Meta-Recipe Revisited
Problem Formulation
Decomposition of the Solution Set
Principle of Conditional Optimization
Conditional Problems
Optimality Equation
Solution ... | 4 | [
-0.00189971923828125,
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-0.020751953125,
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0.0581054687... | 2,636 | 2636 | |
Markov chain transition matrix
I am having a problem with a Markov chain transition matrix question. Can anyone help me?
I have 2 questions in relation to this topic: 1)In a certain production process, items are pass through two manufacturing stages. At the end of each stage, the items are either scrapped with a
proba... | 4 | [
-0.039306640625,
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-0... | 2,637 | 2637 | |
Electrical Sample
No. Question
1 The RMS value of the voltage u(t) =3 + 4cos (3t) is
Options A) V B) 5 V
C) 7 V D) (3 + 2 ) V
Correct A
Answer
The open loop transfer function of a uni... | 5 | [
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-0.0228... | 2,638 | 2638 | |
The AP Calculus Grading System is Badly Broken
The following is a report on my experiences and observations at the 2001 AP calculus reading. My basic conclusion is: The AP Calculus scoring system is one which is fundamentally unfair to the
stu... | 5 | [
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... | 2,639 | 2639 | |
Paul-Baker and other three-mirror anastigmatic aplanats
telescopeѲptics.net ▪ ▪ ▪ ▪ ▪▪▪▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ CONTENTS
◄ 8.3. Three-mirror telescopes ▐ 8.4. Off-axis and tilted element telesco... | 4 | [
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0.0... | 2,640 | 2640 | |
Homework Help
Posted by Joel on Wednesday, May 8, 2013 at 12:57am.
If tan theta = 9/5 and cot omega = 9/5
Find the exact value of sin (omega-theta)
• PreCalc - Joel, Wednesday, May 8, 2013 at 1:25am
sorry that should be theta-omega not omega-theta
• PreCalc - Steve, Wednesday, May 8, 2013 at 11:07am
C... | 4 | [
-0.0625,
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0.01043701171875,
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0.0235... | 2,641 | 2641 | |
sec x + tan x = root 3
December 7th 2008, 11:58 AM #1
Junior Member
Joined
Nov 2008
From
San Diego
Posts
40
sec x + tan x = root 3
Determine all solutions of the equation: sec x + tan x = root 3
I put everything in terms of cos and sin and got:
1/cosx + sinx/cosx = root 3
1+sinx = root... | 4 | [
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-0.02734375,
0.0537109375,
... | 2,642 | 2642 | |
Complex Geometry
October 16th 2010, 07:11 PM
Lukybear
Complex Geometry
The points A and B in the complex plane correspond to complex nos. z1 and z2 respectively. Both triangle OAP and OBQ are right angled isosceles triangles.
i) Explain why P correspond to (1+i)z1: Done
ii) M is midpoint of PQ, what com... | 4 | [
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0.0147705078125,
0.0703125,
-0.0299072265625,
-0.06494140625,
0.... | 2,643 | 2643 | |
Nested Numerical Integral in Matlab
2 Answers
Accepted answer
No products are associated with this question.
Nested Numerical Integral in Matlab
Hello, I am fairly new in using Matlab and was wondering if a nested numerical integral was possible. I have seen a number of other questions here where the outer variable... | 5 | [
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-0.1025390625,
0.0... | 2,644 | 2644 | |
The Parachute Problem
February 24th 2008, 11:27 PM #1
Newbie
Joined
Feb 2008
Posts
1
A parachutist falls from a balloon at a height of y0 (=4000). k1 represents air resistance in stage one and k2 in stage 2. Air resistance is assumed proportional to velocity.
I've split this problem into two sections... | 4 | [
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0.08935546875,
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0.035888671875,
0.01336669921875,
0.0068... | 2,645 | 2645 | |
Nilpotent operator
May 25th 2010, 08:47 AM #1
Nilpotent operator
Let $T:V\to V$ be linear transformation over field, and let $p$ be a polynomial over that field.
Prove that $p(T)$ nilpotent iff $p(0)=0$
Thanks!
Since p is a polynomial, we can write $p(x) = \sum_{i=0}^n a_ix^i$. Now, note that $p(0)... | 5 | [
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-0.06201171875,
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0.047363... | 2,646 | 2646 | |
Polynomial Lesson Plans & Worksheets | Lesson Planet
Polynomial Teacher Resources
Find Polynomial educational ideas and activities
Showing 1 - 20 of 1,379 resources
This is an interesting problem that approaches higher degree polynomials from a different perspective. Given a third degree polynomial, two known zeros,... | 4 | [
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0.017578125,
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0.0240478515625,
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0.0859375,
0.046875,
0.09375,
-0.103515625,
0.046875,
0.018798828... | 2,647 | 2647 | |
en
Dot product of two N-dimensional arrays.
20 May 2013
DOT3(A, B) returns their scalar product, where A and B are arbitrary arrays with arbitrary sizes.
dot3.m
function c = dot3(a, b, idA, idB)
%DOT2 Vector dot... | 4 | [
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0.04443359375,
0.119140625,
-0.07763671875,
0.0405... | 2,648 | 2648 | |
scipy.integrate.quad
scipy.integrate.quad¶
scipy.integrate.quad(func, a, b, args=(), full_output=0, epsabs=1.49e-08, epsrel=1.49e-08, limit=50, points=None, weight=None, wvar=None, wopts=None, maxp1=50, limlst=50)[source]¶
Compute a definite integral.
Integrate func from a to b (possibly infinite interval) u... | 5 | [
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0.0272216796875,
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-0.02294921875,
-0... | 2,649 | 2649 | |
Math Help
July 11th 2011, 03:55 AM #1
Junior Member
Joined
Nov 2010
Posts
41
Integral
Hi,
I'm a bit stuck on this question:
Let g be differentiable in [-1,1]. g(0)=0 and g'(0)=1
Does the limit in the attached image exist (below)? If yes, calculate it. If no, explain why not.
I'm not r... | 4 | [
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-0.08056640625,
-0.05419921875,
0.0130615234375,
0.057861328125,
0.03515... | 2,650 | 2650 | |
The Southern Oscillation Index Model
A simple model of the Southern Oscillation Index (SOI) does not exist. I find it important to understand the origin of the SOI fluctuations, not only because it is an interesting scientific problem
but for its potential predictive value -- in particular, I could use a model to ext... | 4 | [
-0.06884765625,
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0.05810546875,
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0.00701904296875,
-0.07421875,
-0.0849609375,
-0.029052734375,
... | 2,651 | 2651 | |
Equation problem help
April 1st 2008, 06:11 AM #1
Newbie
Joined
Feb 2008
Posts
7
Equation problem help
$\frac{1}{a}+\frac{1}{b}+\frac{1}{c}+\frac{1}{d}=1$
Note that $a,b,c$ and $d$ are natural numbers and you have to find all the possibilities. I only found that $a=b=c=d=4$ or $a=b=c=6$ and $d=2$.
... | 4 | [
-0.0947265625,
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0.023193359375,
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0.030517578125,
-0.030029296875,
0.011474609375,
0.02294921875,
-0.030517578125,
0... | 2,652 | 2652 | |
[SOLVED] Natural Log Help
April 17th 2009, 09:36 AM #1
[SOLVED] Natural Log Help
I have to find the max. and min. values of the following function:
$y=3xe^{-x}+x$
When I take the first derivative, I get:
$y'=3e^{-x}-3xe^{-x}+1$
Though I'm not supposed to, I took a peak at the graph of the firs... | 5 | [
0.00579833984375,
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0.051025390625,
-0.051513671875,
0.003662109375,
-0.07470703125,
-0.... | 2,653 | 2653 | |
Difference Quotient Lesson Plans & Worksheets | Lesson Planet
Difference Quotient Teacher Resources
Find Difference Quotient educational ideas and activities
Showing 1 - 20 of 30 resources
Pupils, with the assistance of their TI-84 Plus / TI-83 Plus calculators, distinguish meanings from right, left and symmetric di... | 4 | [
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0.07470703125,
-0.018798828125,
-0.048095703125,
-0.05615234375,
... | 2,654 | 2654 | |
Equation of Line Help
June 8th 2008, 01:38 PM #1
Newbie
Joined
Jun 2008
Posts
2
Okay so im doing EQAO practice assignments but they still count for marks. So here is a question and when there is something like this 1/4 thats a fraction.
Rearrange 4y-x=8 in the form y=mx+b
a) y=x+b
b) y=-x+2... | 4 | [
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0.138671875,
-0.005462646484375,
-0.02... | 2,655 | 2655 | |
How Big a Sample Do I Need?
Copyright © 2007–2014 by Stan Brown, Oak Road Systems
Summary:
When you estimate a population parameter, you compute a confidence interval after taking sample data. Based on the confidence level that you preselect, and characteristics of your sample or
population, compute a margin of erro... | 5 | [
0.048828125,
0.05224609375,
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0.032470703125,
-0.045654296875,
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0.1650390625,
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0.01458740234375,
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0.052734375,
-0.0334472656... | 2,656 | 2656 | |
Poisson Process, expected time
February 25th 2013, 09:18 PM #1
Newbie
Joined
Feb 2013
From
Austin
Posts
1
Poisson Process, expected time
Consider a one-way road where the cars form a PP(lambda) with rate lambda cars/sec. The road is x feet wide. A pedestrian, who walks at a speed of u feet/sec, will ... | 5 | [
-0.01190185546875,
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0.037... | 2,657 | 2657 | |
solving an intergal without knowing the funtion
October 21st 2010, 12:15 PM #1
MHF Contributor
Joined
Nov 2008
Posts
1,401
solving an intergal without knowing the funtion
$\int_{0}^{^{X}}(x-t)y(t)=2x+\int_{0}^{^{X}}y(t)$
iknow that i should differentiate by x
$\frac{d\int_{0}^{^{X}}(x-t)y(t)}{dx... | 5 | [
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0.0135498046875,
0.... | 2,658 | 2658 | |
Nulls and Ranges
November 9th 2009, 01:02 PM #1
Member
Joined
Sep 2008
Posts
81
Nulls and Ranges
I got a question here that states:
Suppose that p belongs to L(V) and P² = P, show that V = nullP is a direct sum of rangeP.
Could anyone give me a rough idea on how to approach this question? Thank... | 4 | [
0.0400390625,
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0.001953125,
0.10498046875... | 2,659 | 2659 | |
Laurent expansion
August 25th 2010, 06:04 AM #1
Newbie
Joined
Aug 2010
Posts
3
Laurent expansion
Hey, I'm having a lot of trouble with this Laurent expansion because it's a bit more complicated than the ones I'm used to. Sorry it's not in LaTeX.
f(z) = z / (z - 2i)(z + 1)
valid for (i) 0 < |z +... | 5 | [
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0.00817... | 2,660 | 2660 | |
3D Force System
August 4th 2008, 06:41 AM #1
Newbie
Joined
Aug 2008
Posts
3
3D Force System
Hello all. Im so thankfull to have found this site and hope some one can help me. I have exams coming up and am basically completely stuck on these 3D force systems for some reason I cannot get
them through my... | 4 | [
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-0... | 2,661 | 2661 | |
Finding the nth derivative
February 6th 2011, 09:23 AM #1
Member
Joined
Jan 2011
Posts
156
Finding the nth derivative
Find the nth derivative of $f(x) = x^n$ by calculating the first few derivatives and observing the pattern that occurs.
So, here's what I've done so far:
$f'(x) = nx^{x-1})$
... | 5 | [
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-0.02... | 2,662 | 2662 | |
Two-Pair probability
July 5th 2011, 02:51 PM #1
Junior Member
Joined
Mar 2010
Posts
48
Two-Pair probability
The question is: What is the probability of drawing a two-pair in a 5 card set from a normal 52-card deck? That is, QQJJ2 or 337AA, for example.
I have my answer, but for some reason it is exa... | 5 | [
0.000972747802734375,
0.04150390625,
0.0147705078125,
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... | 2,663 | 2663 | |
Homework Help
Posted by sh on Thursday, February 19, 2009 at 8:17pm.
ab+cd=34
ac+bd=38
ad+bc=43
what is a+b+c+d=?
multiple choice:
a)15 b)16 c)17 d)18 e)19
First, I tried guessing and testing, but couldn't find the correct answer.
Then I tried isolating a
a=(34-cd)/b
I'm stuck, there are too many variables
... | 4 | [
-0.0031890869140625,
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0... | 2,664 | 2664 | |
Math Help
May 7th 2012, 08:23 PM #1
Newbie
Joined
May 2012
From
NZ
Posts
7
Trouble
Solve the equation
In10^x=Log e^x +2
Now I got
xIn10 = xLog e +2
x 2.302585093 = x 0.434294481 + 2
x = 0.434294481 +2/2.302585093
so x = 1.0572066
But imputting this into the original... | 4 | [
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-0.12060546875,
0.03662109375... | 2,665 | 2665 | |
Taylor polynomial question
May 12th 2010, 02:26 AM #1
Super Member
Joined
Dec 2008
Posts
509
Taylor polynomial question
Hi
Can someone tell me if this is correct?
1) Find (exactly) the Taylor polynomial of degree four for:
$f(x) = cos(\frac{\pi(x)}{6})$ about x = 2
f(x) = $cos(\frac{\... | 5 | [
-0.03369140625,
-0.058837890625,
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-0.026611328125,
-0.... | 2,666 | 2666 | |
Powers of transcendental numbers
February 21st 2009, 03:57 AM #1
Powers of transcendental numbers
Hi guys,
I'm having trouble proving that if $\pi$ is transcendent, then $\pi^{2k}$ and $\beta\pi$ (where $\beta$ is some non-zero rational constant) are transcendental.
I know that if $\beta\pi$ is algebrai... | 5 | [
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-0.0220947265625,
... | 2,667 | 2667 | |
Complicated Vector Problem.
August 30th 2011, 03:21 PM #1
Junior Member
Joined
Sep 2010
Posts
67
The Problem is:
"A horseman left the village A at point $(1,4)$ and began riding along a straight road whose direction was given by the vector v=7i+4j. The at some point he turned at a right angle; He nev... | 5 | [
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0.09326171875,
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Industrial Landfill
Volumetric Calculation and Life Expectancy of the City of Hays [Kansas] Industrial Landfill Using GPS and ArcGIS and Spatial Analyst GIS
by Dr. Kenneth R. Neuhauser, Dr. Thomas Schafer, Dr. Richard Lisichenko, Jeff Burch, Keith Goentzel, Mike... | 4 | [
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... | 2,669 | 2669 | |
First Year Linear Algebra Assignment Question
October 8th 2009, 12:50 PM
colmex
First Year Linear Algebra Assignment Question
I dont know how to go about doing this, well i know how to find the conditions but the answer i come up with is in a different format than the input for the online assignment is heres the... | 5 | [
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-0.05004882812... | 2,670 | 2670 | |
2 More Difficult Questions, Any Help Is Appreciated
April 11th 2008, 03:38 AM #1
Newbie
Joined
Apr 2008
Posts
3
2 More Difficult Questions, Any Help Is Appreciated
the first question is:
let a1, a2, a3, a4, a5 , be any distinct positive integers. Show that there exists at least one subset of three o... | 5 | [
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0.037841796875,
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-0.097167... | 2,671 | 2671 | |
Karnaugh Maps
Date: 05/07/2000 at 08:11:31
From: Edmond Goold
Subject: Karnaugh Maps
What are Karnaugh maps?
Date: 05/12/2000 at 15:37:59
From: Doctor TWE
Subject: Re: Karnaugh Maps
Hi Edmond. Thanks for writing to Dr. Math.
A Karnaugh map is a technique used to simplify Boolean expressions
(and logic circuits) ... | 5 | [
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Two Gravity related questions that I would like checked.
June 23rd 2010, 11:02 AM
MathBlaster47
Two Gravity related questions that I would like checked.
Greetings once more MHF!
I have a couple of questions related to gravity that I think I have worked out fully but need to make sure of.
On all questio... | 4 | [
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0.0539550781... | 2,673 | 2673 | |
Quotient Rule Word Problem
August 1st 2006, 03:29 PM
becky
Quotient Rule Word Problem
I am having difficulty remembering how to multiply the square root portion of this problem.
A study indicates that spending money on pollution control is effective up to a point but eventually becomes wasteful. Suppose it ... | 5 | [
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0.057861... | 2,674 | 2674 | |
Statistical Slumps—A Commentary by Ian Ayres ’86
August 26, 2009
Statistical Slumps—A Commentary by Ian Ayres ’86
The following commentary was posted on nytimes.com on August 26, 2009.
Statistical Slumps
By Ian Ayres ’86
My dad was a box salesman and once a year he’d take me on an overnight sales trip. My daughter ... | 5 | [
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0.060791015625,
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0.0419921875,
0.021240... | 2,675 | 2675 | |
Polynomials
January 9th 2014, 06:05 PM
gahyunkk
Polynomials
P(x) is a monic polynomial of degree 4 with integer coefficients and constant term 4. One zero is root2, another zero is rational and the sum of the zeros is positive. Factorise p(x) fully over
Real field.
Help me:'(
January 9th 2014, 06:12 PM... | 4 | [
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0.055419921875,
-0.037353515625,
... | 2,676 | 2676 | |
Limit
What have you tried? Can you use L'Hopital's rule? -Dan
If you're allowed to use L'Hospital's Rule, use it. If not, rewrite it as \displaystyle \begin{align*} \frac{\tan{(x)} - \sin{(x)}}{x^3} &= \frac{\tan{(x)}}{x^3} - \frac{\sin{(x)}}{x^3} \\ &= \frac{\
sin{(x)}}{x^3\cos{(x)}} - \frac{\sin{(x)}}{x^3} \\ &= \fr... | 5 | [
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-0.0159912109375,
-0.0194091796875,
0.047119140625,
-0.026123046875,
0.04858... | 2,677 | 2677 | |
of Dispersion
Measures of Dispersion
Definition:
1. Two or more distributions may differ greatly in their dispersion, although their means may be the same, for e.g.:
... | 4 | [
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0.0732421875,
-0.... | 2,678 | 2678 | |
Prioritized Multiplicative Schwarz Procedures for Solving Linear Systems :: Institutional Repository
Prioritized Multiplicative Schwarz Procedures for Solving Linear Systems
David Wingate, Nathaniel Powell, Quinn Snell, Kevin Seppi
Computer Science Department
Brigham Young University
Provo, Utah 84602
{ w... | 4 | [
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-0.03271484375,
0.0172119140625... | 2,679 | 2679 | |
Normal distribution
August 20th 2013, 01:38 AM #1
Senior Member
Joined
Oct 2009
Posts
295
Thanks
9
Normal distribution
$\\\text{If }X\text{has a normal distribution with mean }1 \text{ and variance }4\text{, then }\\\\P[X^2-2X\leq 8]=?$
My question whether there is another way of approaching thi... | 4 | [
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-0.037109375,
0.0137939453125,
-0... | 2,680 | 2680 | |
Central limit theorem
January 3rd 2010, 05:20 PM #1
Newbie
Joined
Dec 2009
Posts
21
Central limit theorem
Hi i need some help with the question below, struggling to know how to apply the central limit theorem,
The Xi are a sequence of independent identical random variable with the given distrabu... | 5 | [
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0.0048828125,
-0.1049804687... | 2,681 | 2681 | |
Integrals Lesson Plans & Worksheets :: 101 - 120
Integrals Teacher Resources
Find Integrals educational ideas and activities
Showing 101 - 120 of 417 resources
Humongous Calculus problem of the day - "Two hikers begin ..." Use the properties of indefinite integers and indefinte integrals to solve this problem. Six ... | 4 | [
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0... | 2,682 | 2682 | |
find pdf of z= x^2+y^2, x,y-uniform
October 9th 2008, 04:55 AM #1
Newbie
Joined
Oct 2008
Posts
4
find pdf of z= x^2+y^2, x,y-uniform
X,Y are independent and uniformly distributed on [-1,1]. Z is constructed by taking the samles of X and Y and constructing X^2+Y^2 , but discarding all Z>1. Therefore, prov... | 5 | [
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-0.111328125,
0.0022430419921875,
-... | 2,683 | 2683 | |
Describing $SU(n,C)$
up vote 1 down vote favorite
1
For $A \in SU(2,C)$, it is clear that $A$ is completly determined by its first row (well any row or column, but let's say first column). In the general $SU(n,C)$-case this is no longer true. In fact,
it seems that for every complex $n$-vector of unit norm, there exis... | 4 | [
-0.1181640625,
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-0.001373291015625,
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0.0225830078125,
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0.0810546875,
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-0.051513671875,
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-0.029296875,
0.00616455078125,... | 2,684 | 2684 | |
Factoring 5th root polynomial
May 2nd 2012, 02:15 AM
froodles01
Factoring 5th root polynomial
My question started with
Show -243 in polar form which I did, <243, ∏ >
Then find all fifth roots of -243, which I did
z0 = <3, ∏/5 >
z1
. . . .
z4 = <3, 9∏/5 >
Now I need to factorise the p... | 4 | [
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0.0546875,
0.0269775390625,
-0.03271484375,
-0.0228271484375,
0.0058288574218... | 2,685 | 2685 | |
XLSTAT-SPC
View tutorialsXLSTAT-SPC is an Excel add-in which has been developed to provide XLSTAT-Pro users with a powerful solution for Statistical Process Control (SPC). XLSTAT-SPC is the ideal module for
companies who apply Six Sigma methods to control and improve the quality of their production or sales processes... | 4 | [
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0.07666015625,
-0.035888671875,
... | 2,686 | 2686 | |
goniometric function
February 5th 2014, 10:56 AM #1
Newbie
Joined
May 2013
From
Prague, Czech Republic
Posts
8
goniometric function
Hello, could you please help me with this:
I would like to know, if there are some mistakes or absences.
Thank you so much, M.
$2sin^2x+cos^2x+sinxcosx=1$... | 4 | [
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-0.020751953125,
-0.017822265625,
-0.01... | 2,687 | 2687 | |
Memorandum from Raymond L. Murray to Clifford K. BeckMachine readable transcriptionMemorandum from Raymond L. Murray to Clifford K. BeckLibrary of Congress Subject Headings
%MurNBequilibrium000000; %MurNBequilibrium000000forms; ]> Murray, Raymond L. Creation of machine-readable version: Russell S. Koonts Creation of di... | 5 | [
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-0.0272216796875,
... | 2,688 | 2688 | |
proof of infinite n's s.t. sqrt(n) = irrational
October 7th 2009, 01:09 PM #1
Newbie
Joined
Oct 2009
Posts
3
proof of infinite n's s.t. sqrt(n) = irrational
Hey; I need help with the following problem:
"Prove that there are infinitely many positive integers 'n' such that sqrt(n) is irrational."
... | 5 | [
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0.00958251953125,
0.01721191406... | 2,689 | 2689 | |
Radioactive decay
March 27th 2006, 04:13 PM #1
Newbie
Joined
Mar 2006
Posts
9
Radioactive decay
Need some help on a homework problem:
At time t = 0 a vessel is initially loaded with 1 kg. of pure Lead-214, which subsequently decays to Bismuth-214 and Polonium-214. Let L, B, and P denote the decay c... | 5 | [
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-0.103515625,
-0.0791... | 2,690 | 2690 | |
Is y= x^2-|x-4| differentiable at x=4?
January 25th 2010, 06:56 AM #1
Junior Member
Joined
Feb 2008
Posts
39
Is y= x^2-|x-4| differentiable at x=4?
Doesn't x^2 mean it'll be a parabola and thus differentiable for all x? That's what I thought but the absolutes screw me up
I guess you could follow thi... | 4 | [
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0.0625,
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0.06298828125,
0.0184326171875,
-0.1279296875,
-... | 2,691 | 2691 | |
Minimum Distance Using Lagrange Multipliers
Date: 11/17/1999 at 20:27:48
From: Gloria Compise
Subject: Lagrange Multipliers
I'm trying to solve the following problem. Find the minimum distance
from (0,0,c) to the cone z^2 = (x^2/a^2)+(y^2/b^2).
So far what I've done is,
f(x,y,z) = x^2 + y^2 + (z-c)^2
... | 5 | [
0.024169921875,
0.0255126953125,
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0.0732421875,
-0.0654296875,
0.0810546875,
-0.00201416015625,
-0.0952... | 2,692 | 2692 | |
Maximum Likelihood Estimator with binomial distribution question
March 6th 2011, 03:40 PM #1
Newbie
Joined
Mar 2011
Posts
7
Maximum Likelihood Estimator with binomial distribution question
Q. There are N fish in a lake. Six fishermen fished for 3 hours and caught 8 fish between them. They fished for anot... | 4 | [
0.00372314453125,
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0.0157470703125,
0.04296875,
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0.04248046875,
-0.1015625,
-0.034... | 2,693 | 2693 | |
Oblivious Transfer
1-out-of-$n$ Oblivious Transfer
Suppose $A$ has a list $(x_1,...,x_n)$, $B$ has $i \in \{1,...,n\}$.
1. $B$ learns $x_i$ and nothing else
2. $A$ learns nothing about $i$
Theorem: [Kilian’87] 1-out-of-2 OT is universal for 2-party SFE
In other words, given a 1-out-of-2 OT protocol, one can do ... | 4 | [
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0.0306396484375,
0.0052795410... | 2,694 | 2694 | |
Simplifying and Working with Imaginary Numbers
Date: 04/11/2008 at 11:05:07
From: L
Subject: simplifying imaginary square roots
I gave a question on a test that said to simplify the square root of
50 over the square root of -5. The answer I accepted was -i times the
square root of 10 but one of my students claims he... | 4 | [
-0.01507568359375,
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0.01434326171875,
-0.052490234375,
... | 2,695 | 2695 | |
rolling two dices probability problem
August 28th 2007, 10:26 PM #1
Junior Member
Joined
Aug 2007
Posts
26
anybody can help with the next problem:?
A game begins by choosing between dice A and B is some manner such that the probability that A is selected is 'p'. The die thus selected is then tossed un... | 4 | [
0.06201171875,
0.005462646484375,
-0.031494140625,
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-0.02734375,
0.07861328125,
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-0.009033203125,
0.029052734375,
0.0673828125,
-0.07421875,
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0.01226806640625,
0.07421875,
0.04443359375,
-0.07568359375,
-0.0390625,
-0.0937... | 2,696 | 2696 | |
Simple harmonic motion: the swing of the pendulum
A pendulum. Note the outer two images are clearer because the pendulum has lots of potential energy but not kinetic energy (that is, it has slowed to a stop at the end of the swing); and the blurring
of the middle two images, because at the bottom of the swing the pend... | 4 | [
0.006500244140625,
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0.041015625,
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-0.04541015625,
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-0.0830078125,
-0.0023040771484375,
0.10302734375,
0.0196533203125,
-0.037353515625,
0.0020294189453125,
0.00191497802734375,
-0.017822265625,
0.039306640625,
-0.0155029296875,
-0... | 2,697 | 2697 | |
combinations
June 9th 2009, 05:39 AM #1
Junior Member
Joined
Oct 2008
From
Brisbane
Posts
25
combinations
1)How many four letter words can be formed from the word proportion?
2)How many committees of 9 people can be chosen from 12, if two certain people must never be in the same committee?
... | 4 | [
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-0.07568359375,
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0.05419921875,
0.01220703125,
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0.03173828125,
0.04052734375,
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0.0234375,
-0.0196533203125,
-0.07373046875,
0.017333984375,
0.00390625,
-0.00665283203... | 2,698 | 2698 | |
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Topic: HELP - SQRT(3)
Replies: 16 Last Post: Dec 1, 1997 ... | 4 | [
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-0.016357421875,
-0.056884765625,
0.031982421875,
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0.048828125,
0.126953125,
0.0693359375,
-0.0108642578125,
-0.07177734375,
0.0368... | 2,699 | 2699 |