content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
sigma notation
November 3rd 2007, 08:52 AM
Tom123
sigma notation
Hi.
I have this example in my boo
I have a similar question which I started,
But I don't really understand how the sigma notation worked in the first link... therefore I don't know the next line on mine.
Looking for any pointers/... | 4 | [
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0.00939... | 17,600 | 17600 | |
The Fibonacci sequence
From HaskellWiki
(Difference between revisions)
(→With scanl) m (added unfoldr version, removed so-called "fix point" solution)
← Older edit
Newer edit →
Line 15: ... | 4 | [
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Notions of simultaneity in strongly curved spacetime
harrylin
And a quick comment on that quick comment: I don't see the qualitative difference with "The light speed limit doesn't exist; the tachyon space works just fine, it is the same solution. You just have
to deal with technical problems to get through c".
It d... | 4 | [
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Patent US5835060 - Self-resolving LBI triangulation
Publication number US5835060 A
Publication type Grant
Application number US 08/731,191
Publication date Nov 10, 1998
Filing date Oct 7, 1996
Priority date Oct 7, 1996
Fee status Lapsed
Publication number 08731191, 731191, US 5835060 A, US 58350... | 4 | [
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nline
DEtools/rifsimp/nonlinear - information and options specific to nonlinear equations
Description
• Leading nonlinear equations
This help page explains how rifsimp handles equations which are polynomially nonlinear in their leading indeterminate (called leading nonlinear equations), or equations that are l... | 4 | [
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Right angle: you know all 3 angles and length a, not b or c?
June 18th 2008, 08:33 AM
john r
Right angle: you know all 3 angles and length a, not b or c?
Could someone help me with this? I have a right angle triangle, 90, 30 and 60 degrees. Say the length of A is 30 inches. What would B and C be? Any help would ... | 4 | [
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F-measurable
January 11th 2011, 07:07 PM
Volga
F-measurable
I am a newby in stochastic processes, which I study in the context of the modelling of security prices (financial mathematics). I'd appreciate your help.
Question. Consider the sample space $\Omega=\{-3,-2,-1,1,2,3\}$ and the algebra F= $\{\phi,\{-... | 4 | [
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Go4Expert - View Single Post - Math Riddle | 17 Jul 2009
This code found multiple results; it only searches for approximations (hence if test1>=-0.05 && test2<=0.05) but all the results revolve around 6 hence the guess that there was an integral solution
that was precisely 6.0. But this would make x,y,z non-integral a... | 5 | [
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Transposing a fraction with the same unknown
November 17th 2009, 04:29 PM #1
Newbie
Joined
May 2009
Posts
5
Transposing a fraction with the same unknown
I am struggling to transpose my OWN formula, my math skills are terrible. I have:
$1.5=(x+10)/(x+5)$
I know x is 5 because I made this problem.... | 4 | [
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Math Help
August 30th 2009, 09:36 AM #1
Newbie
Joined
Jun 2009
Posts
19
These are typical examples of the limits I am having trouble on. I need help and I have test on Monday eek I understand most limits I just have trouble with these. =D Thank You-- Carol-ANN
PS. I know how to do number 4
F... | 5 | [
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Second derivatives using implicit differentiation
October 17th 2010, 02:47 PM #1
Member
Joined
May 2010
Posts
241
Second derivatives using implicit differentiation
Hi there. Well, I wanted to know how to find the second derivatives of a function using implicit differentiation. Is it possible? I think it ... | 5 | [
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Solvability of Three-Point Boundary Value Problems at Resonance with a
Abstract and Applied Analysis
Volume 2012 (2012), Article ID 658010, 16 pages
http://dx.doi.org/10.1155/2012/658010
Research Article
Solvability of Three-Point Boundary Value Problems at Resonance with a -Laplacian on Finite and Infinite Interva... | 5 | [
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Solvable Group
April 12th 2010, 11:27 AM
mathman88
Solvable Group
Show $B=\left\{ \left. \left(\begin{array}{cc}x&z\\0&y\end{array}\right) \;\; \right| \;\; x,y\in \mathbb{F}_p^\times,\; z\in\mathbb{F}_p \right\}$ is a solvable group.
The group operation is matrix multiplication.
April 12th 2010, 11:38 AM
... | 4 | [
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Mathematical Induction
March 29th 2009, 02:31 PM
wir3d_riot
Mathematical Induction
Hi there,
I'm totally dumbfounded by this question. Could anyone give me a basis on where to start so I can at least try to work it out myself?
Quote:
Use mathematical induction to show that:
$S(n) = 3*2^{n-1}... | 4 | [
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Finish this equation
$3(x-3)^3=375$ $(x-3)^3=125$ $x^3-9x^2+27x-9=125$ $x^3-9x^2+27x-134=0$ Not sure where to go from here
Sorry? What y? I need to find the value of x. The answer is supposedly 8.
$(x-3)^3=125$ Since $125=5^3$ then $(x-3)^3=5^3$. From this we have that x-3=5 or x=8
No need to expand. From ... | 4 | [
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Echelon Form
Row Echelon Form
3. Computing row echelon form
The leading entries in a row echelon form are called the pivots. The rows and the columns containing the pivots are the pivot rows and the pivot columns. For example, in the row echelon form
1 3 4 5
[ 0 0 2 6 ]
0 0 0 0
the pivots are the entries 1, 2,... | 5 | [
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Trampoline Problem! Please Help Me Out!
1. The problem statement, all variables and given/known data
For my math class, I had to come up with a real-life scenario where data that is extracted from the scenario can produce a sinusoidal function, and I have to graph the function. My scenario involves
a person bouncing u... | 4 | [
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surjection of composition
May 3rd 2009, 11:45 AM #1
surjection of composition
Below f is a function from a set A to a set B, and g is a function from the set B to a set C.
Property 1: If f and g are surjections, then fg is a surjection.
Proof of Property 1:
Let z an arbitrary element in C.
Then ... | 4 | [
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Upper Semicontinuous Property of Uniform Attractors for the 2D Nonautonomous Navier-Stokes Equations with Damping
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 861292, 11 pages
http://dx.doi.org/10.1155/2013/861292
Research Article
Upper Semicontinuous Property of Uniform Attractors for the 2D Nonauton... | 4 | [
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Coursework help
October 24th 2010, 08:56 AM #1
Newbie
Joined
Oct 2010
Posts
2
Coursework help
Hi, i've just started a degree in Computer Science and have a discrete math assignment to hand in tommorow. Could anyone please help?
(I'm not asking you to do it for me but explain how to do it or show me ... | 4 | [
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Length of a Curve
Consider x=(e^t)+(e^-t), y=5-2t, 0<t<3. Find the length of the curve.
Recall the arc length integral: $= \int_{ {t }_{i } }^{ {t }_{f } } \left | r'(t) \right | dt$ Where, $r'(t) = \sqrt[ ]{x'(t)^{2}+y'(t)^{2} }$ So we have: $x(t) = e^{t}+e^{-t} = 2cosh(t)$ $y(t) = 5 -
2t$. Then, $x'(t) = 2sinh(t)$ $... | 5 | [
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I'm trying to understand why this is the domain of this function
September 17th 2010, 07:38 PM #1
Newbie
Joined
Sep 2009
Posts
14
I'm trying to understand why this is the domain of this function
I'm trying to find the domain for the function: square root of (9-x^2)...So what I do is solve for 9-x^2 >= 0 ... | 4 | [
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Human Ovarian Reserve from Conception to the Menopause
Abstract
The human ovary contains a fixed number of non-growing follicles (NGFs) established before birth that decline with increasing age culminating in the menopause at 50–51 years. The objective of this
study is to model the age-related population of NGFs in th... | 4 | [
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Radius of Convergence, limits: Complex numbers.
July 25th 2012, 07:33 AM
ebb
Radius of Convergence, limits: Complex numbers.
I'm really shaky with radius of convergence and limits when complex numbers are thrown into the mix, so I would be really grateful if someone could check I've answered these questions corr... | 5 | [
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subgroups and generators
August 30th 2009, 04:45 AM #1
Super Member
Joined
Aug 2009
Posts
639
subgroups and generators
Hi,
Im really confused with subgroups and generators. May I know what is the difference?
I was reading a book where they state that the subgroups of Z18 are <0>,<1>,<2>,<3>,<6>,... | 5 | [
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[SOLVED] Reviewing Logs and stuck on a problem...help?!?
October 6th 2009, 09:40 PM
strngFan
[SOLVED] Reviewing Logs and stuck on a problem...help?!?
I have the following problem on my homework:
50(1.02)^3x = 30(1.47)^x solve for x
I've tried many things and quick math gave the answer as x=1.56... but ... | 4 | [
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Prove that 4 vector potential is really a 4 vector?
[QUOTE=Phrak;1725452]
I don't understand where [tex]a_{\mu} \rightarrow \Lambda_{\mu}{}^{\nu} a_{\nu} + \partial_{\mu}\Omega[/tex] comes from.
If I assume [tex]\acute{a}_{\mu}[/tex] is a regauged (dual) 4-vector, [tex]\acute{a}=a + d\Omega[/tex],
the Lorentz transf... | 4 | [
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... | 17,626 | 17626 | |
Two surds problems - one involving simultaneous equations..
August 7th 2008, 08:36 AM #1
Member
Joined
Nov 2007
Posts
100
Two surds problems - one involving simultaneous equations..
1. Two sides of a triangle are 5sqrt(3) and 10sqrt(2) respectively, while the hypotenuse is unknown. Here I tried finding t... | 4 | [
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0.0255126953125,
0.08349609375,
0.00811767578125,
0.021240234375,
-0.08544921875... | 17,627 | 17627 | |
Flow of an Eyring-Powell Model Fluid between Coaxial Cylinders with Variable Viscosity
Chinese Journal of Engineering
Volume 2013 (2013), Article ID 808342, 7 pages
http://dx.doi.org/10.1155/2013/808342
Research Article
Flow of an Eyring-Powell Model Fluid between Coaxial Cylinders with Variable Viscosity
Department... | 4 | [
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0.0732421875,
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0.011596... | 17,628 | 17628 | |
Proving composite number
How do you prove that 1280000401 is a composite number?
Hello, RuyHayabusa! How do you prove that 1,280,000,401 is a composite number? . I don't know . . . Now that Ipuchala has factored it, I see a truly far-fetched approach. $1,280,\!000,\!401 \;=\;2^7
(10^7) + 2^2(10^2)+1 \;=\;20^7 + 20^2 +... | 4 | [
0.024169921875,
0.06982421875,
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0.0147705078125,
0.051513... | 17,629 | 17629 | |
Proof of a congruence problem
December 28th 2009, 03:00 AM #1
Proof of a congruence problem
Hello ! I'm having this little problem.
Prove that if $m$ is prime, then $(m - 2)! \equiv 1 \pmod{m}$.
I thought it would be possible to state that $(m - 2)! = \frac{(m - 1)!}{m - 1}$, thus we have $\frac{(m - 1)... | 4 | [
-0.026123046875,
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0.09423828125,
-0.01446533203125,
-0.0224609375,
0.046875,
0.03955078125,
0.0234375,
0... | 17,630 | 17630 | |
GMAT Probability (Data Sufficiency)
• GMAT Prep (USA)
•
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•
• Favorite GMAT Articles
□ 800score GMAT Course Reviews
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•
• Free GMAT Prep
□ Free G... | 4 | [
0.03857421875,
-0.043212890625,
0.052978515625,
0.01409912109375,
0.004425048828125,
0.03369140625,
0.037841796875,
0.0244140625,
-0.04443359375,
0.006683349609375,
0.05419921875,
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-0.07568359375,
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0.0255126953125,
0.041748046875,
-0.05... | 17,631 | 17631 | |
Parametric Equations
May 19th 2008, 10:13 PM #1
Junior Member
Joined
Apr 2008
Posts
45
Parametric Equations
I'm having problems with a few parametric equation questions. Considering how much trouble I've been having with this particular unit of work, I expect I'll have to use this thread to ask more
... | 5 | [
-0.0244140625,
0.024169921875,
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0.09765625,
0.0380859375,
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0.0888671875,
0.008544921875,
0.1455078125,
0.00030517578125,
-0.0634765625,
... | 17,632 | 17632 | |
Linear and angular acceleration of a falling cylinder? [long]
1. The problem statement, all variables and given/known data http://img248.imageshack.us/img248/1639/cylinderjl0.jpg
A uniform cylinder with a radius of R and mass M has been attached to two cords and the cords are wound around it and hung from the ceiling.... | 4 | [
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0.03662109375,
-0.061279296875,
0.029296875,
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0.068359375,
-0.0... | 17,633 | 17633 | |
Patent US20020123953 - Systems and methods for providing robust investment portfolios
[0001] This application claims the benefit of U.S. Provisional Application, Serial No. 60/256,150, filed on Dec. 15, 2000, and entitled METHOD FOR ROBUST PORTFOLIO OPTIMIZATION, the disclosure of
which is hereby incorporated by refere... | 4 | [
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0.060302734375,
0.01226806640625,
... | 17,634 | 17634 | |
Laplace shifting problem
October 28th 2010, 12:26 AM
weedingb
Laplace shifting problem
Hi,
I am trying to solve
$y''+4y=0, 0<t<a; exp(-t), t>a$
using Laplace transforms.
I end up with
$H(t-a)(exp(-(t-a))-cos(2(t-a))+1/2sin(2(t-a))$
where H(t-a) is the Heaviside/unit step function. Is... | 5 | [
-0.09521484375,
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-0.06005859375,
-0.09423... | 17,635 | 17635 | |
Deriving method of moments
October 22nd 2010, 01:49 PM #1
Newbie
Joined
Sep 2010
Posts
14
Deriving method of moments
Let's hypothesize that I have n iid observations from a Poisson distribution with parameter lambda, how do I derive the method of moments estimator of lambda?
$X_1,...,X_n \sim Poisso... | 5 | [
-0.07470703125,
0.035888671875,
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-0.06396484375,
0.027587890625,
0.037841796875,
-0.00811767578125,
0.006... | 17,636 | 17636 | |
Mole question
tanya234
Hello, how would i solve the following?:
"How many litres of air (78% N2, 22% O2 by volume) are needed for the combustion of 1 litre of octane, C8H18, a typical gasoline component, of density 0.70g/mL?"
Note - 1 mole of oxygen gas is equal to 24.5 litres.
I have done the chemical equation of ... | 4 | [
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0.11376953125,
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0.04541015625,
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0.0264892578125,
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0.0703125,
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0.00054931640625,
0.0654296875,
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-0.0203857421875,
-0... | 17,637 | 17637 | |
On Stability of a Third Order of Accuracy Difference Scheme for Hyperbolic Nonlocal BVP with Self-Adjoint Operator
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 959216, 15 pages
http://dx.doi.org/10.1155/2013/959216
Research Article
On Stability of a Third Order of Accuracy Difference Scheme for Hyperb... | 5 | [
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0.04248046875,
... | 17,638 | 17638 | |
Orthogonality Preserving Linear Map.
November 27th 2012, 09:28 AM #1
Orthogonality Preserving Linear Map.
I'm having trouble with the following problem:
Let $V$ be a real vector space equipped with an inner product $\langle\cdot,\cdot\rangle$ (and thus with a norm induced by that inner product).
Let $T:V... | 4 | [
-0.08349609375,
-0.00054168701171875,
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-0.09375,
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-0.09375,
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-0.055908203125,
0.00787353515625,
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0.0869140625,
0.02294921875,
-0.0142211914... | 17,639 | 17639 | |
An equation in the free associative ring
up vote 5 down vote favorite
2
Let $X$ be an alphabet, $u,v,p,q,r,s$ be words in the alphabet $X$. I am looking for four elements in the free associative ring $R$ (i.e. four linear combinations of words in $X$) $x,y,z,t$ such that
$$u-v=x(p-q)y+z(r-s)t.$$ Is this problem decida... | 5 | [
-0.04736328125,
0.0654296875,
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-0.0537109375,
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0.01123046875,
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-0.0084228515625,
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0.0859375,
0.018310546875,
-0.00537109375,
-0.013427734375,
0.040771484... | 17,640 | 17640 | |
Patent US20040133292 - Generalized envelope matching technique for fast time-scale modification
CLAIM OF PRIORITY
[0001] This application claims priority under 35 U.S.C. 119(c) from U.S. Provisional Application 60/426,716 filed Nov. 15, 2002.
TECHNICAL FIELD OF THE INVENTION
[0002] The technical field of this invent... | 4 | [
-0.0634765625,
-0.004364013671875,
-0.001983642578125,
-0.076171875,
-0.058349609375,
0.00058746337890625,
-0.00653076171875,
0.002288818359375,
0.00811767578125,
-0.0185546875,
0.0013580322265625,
0.005157470703125,
-0.054931640625,
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0.001983642578125,
-0.052490234... | 17,641 | 17641 | |
Examples : Normal Probability Distribution
┌───────────────────┬────────────────────────────────┐
│General Statistics │ Examples │
│ │Normal Probability Distribution │
└───────────────────┴────────────────────────────────┘
Normal / Continuous Probability Program Normal (z-score ... | 5 | [
0.09326171875,
0.0498046875,
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0.0771484375,
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0.016357421875,
0.04345703125,
-0.03076171875,
0.0172119140625,
-0.00994873046... | 17,642 | 17642 | |
Patent US7974365 - Method and apparatus for computing SIR of time varying signals in a wireless communication system
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation of U.S. patent application Ser. No. 12/191,533, filed Aug. 14, 2008, which is a continuation of U.S. patent application Ser. No.... | 4 | [
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-0.0274658203125,
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0.068359375,
0.008544921875,
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0.1025390625,
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-0.049560546875,
-0.032958984375,
-0.05517578125,
0.095703125,
-0.0346679... | 17,643 | 17643 | |
Patent US7263239 - Method for resizing images using the inverse discrete cosine transform
This nonprovisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No. 2002-0063600 filed in KOREA on Oct. 17, 2002, which is herein incorporated by reference.
BACKGROUND OF THE INVENTION
1. Field of ... | 4 | [
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0.04345703125,
-0.03076171875,
-0.09521484375,
-0.034912109375,
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0.06640625,
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0.10546875,
-0.06... | 17,644 | 17644 | |
trajectory flight
October 21st 2006, 01:29 PM
conman
trajectory flight
Question is:
given the equation for fireworks: f(x) = 24.5t - 4.9t^2
what velocity does the rocket travel at its maximum height?
what time would the fuse timer need to be set at to have the rocket explode at maximum height?
... | 4 | [
0.01531982421875,
0.052001953125,
0.049560546875,
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0.09814453125,
-0.03515625,
-0.0358886... | 17,645 | 17645 | |
Contour Integrals
May 20th 2010, 03:33 AM #1
Newbie
Joined
May 2010
Posts
2
Contour Integrals
I'm working on a problem that has contour integrals and checked the answers my professor provided with a solution sheet, however there's a part in the solution sheet I don't understand.
This is the question... | 4 | [
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0.09033203125,
0.0169677734375,
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0.05908203125,
0.007293701171875,
0.0625,
-0.006866455078125,
0.06689453125,
0.0380859375,
0.1083984375,
0.00946044921875,
0.0106201171875,
0.0341796875,
-0.04052734375,
0.0101318359375,
-0.0238037109375,
-0.059326171875,... | 17,646 | 17646 | |
limit of series 1 A
January 18th 2011, 10:29 AM #16
MHF Contributor
Joined
Apr 2005
Posts
15,306
Thanks
1282
The limit of that sequence is $e^x$ as you should be able to recognize the MacLaurin series for $e^x$
However, the derivative of $y= e^x$ is $e^x= y$, not x+ y.
If you are trying to us... | 5 | [
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-0.04931640625,
0.037841796875,
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0.04833984375,
-0.045166015625,
-0.04248046875,
-0.05615234375,
0.0159912109375,... | 17,647 | 17647 | |
Sum of squares from 0 to 1
March 6th 2008, 08:55 PM #1
Newbie
Joined
Mar 2008
Posts
4
Sum of squares from 0 to 1
The integral from 0 to 1 of x^2 is equivalent to the integral from 0 to 1 of the sum of the first n squares formula (x(2x+1)(x+1)/6) does anyone know if this is some special occurrence (it's o... | 5 | [
-0.033935546875,
-0.0123291015625,
0.0103759765625,
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0.0267333984375,
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0.015625,
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-0.0228271484375,
-0.10009765625,
-0.07763671875,
0.019287109375,
0.0230712... | 17,648 | 17648 | |
Abstract Algebra-Isomorphism
December 18th 2009, 11:12 AM
WannaBe
Abstract Algebra-Isomorphism
Let A,B be normal sub-groups of a group G.
G=AB.
Prove that:
G/AnB is isomorphic to G/A*G/B
Have no idea how to start...Maybe the second isom. theorem can help us...
TNX!
December 18th 2009, 11:... | 5 | [
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0.07275390625,
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0.068359375,
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-0.0185546875,
-0.05224609375,
0.06298828125,
0.0172119140625,
-0.0022277... | 17,649 | 17649 | |
[SOLVED] Differentiation / Integration
December 13th 2009, 07:01 PM
Ife
[SOLVED] Differentiation / Integration
Given the velocity and initial postion of a body moving along a coordinate line at time t, find the body's postion at time t.
$v = cos \frac{ \pi}{2}t, s(0)=1$
I am sure that my answer is wrong... | 5 | [
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0.04638671875,
0.078125,
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0.0164794921875,
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0.046875,
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0.0015716552734375,
0.04150390625... | 17,650 | 17650 | |
Find Laverne's Rate
April 12th 2009, 06:06 AM #1
MHF Contributor
Joined
Jul 2008
From
NYC
Posts
1,489
Find Laverne's Rate
At 9am, Laverne started from home on a hike to a mountain 12 miles away. After reaching the mountain, he took 1 hour for lunch and then returned over the same route, arriving home... | 4 | [
0.0556640625,
0.022216796875,
0.04345703125,
0.0186767578125,
0.0120849609375,
-0.01153564453125,
0.000827789306640625,
0.0517578125,
-0.0361328125,
0.01422119140625,
0.046142578125,
-0.051025390625,
-0.0294189453125,
0.0439453125,
-0.0252685546875,
0.00616455078125,
0.01470947265625... | 17,651 | 17651 | |
Systems of Navier-Stokes Equations on Cantor Sets
Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 769724, 8 pages
http://dx.doi.org/10.1155/2013/769724
Research Article
Systems of Navier-Stokes Equations on Cantor Sets
^1Department of Mathematics and Mechanics, China University of Mining and Tech... | 4 | [
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0.0294189453125,
-0.05810546875,
-0.044189453125,
-0.138... | 17,652 | 17652 | |
the firework
June 3rd 2008, 05:50 PM #1
Newbie
Joined
Jun 2008
Posts
6
the firework
the equation for a firework is h=-5d2+20d+1
h=height above the ground
d=horizontal distance
What would the max height of the firework be?
I am going to assume two things..firstly d2=dē and secondly, tha... | 5 | [
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0.06298828125,
0.095703125,
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0.0177001953125,
-0.01544189453125,
0.00927734375,
-... | 17,653 | 17653 | |
Integration using substitution
February 12th 2008, 02:17 AM #1
Member
Joined
Mar 2007
From
England
Posts
104
Integration using substitution
I'm stuck on the following question:
Use the subsitution t=sinhx to find:
$<br /> \<br /> \int_0^a {\sqrt {(1 + t} ^2 )dt} <br /> \<br />$
I used
... | 5 | [
0.042236328125,
0.041015625,
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0.035888671875,
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0.040283203125,
0.026123046875,
-0.057373046875,
-... | 17,654 | 17654 | |
Patent US7298296 - Real-time sample rate converter having a non-polynomial convolution kernel
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to digital audio and audio-video systems, and more specifically, to a real-time sample rate converter and method that use non-line... | 4 | [
-0.0947265625,
0.0037078857421875,
-0.150390625,
-0.048095703125,
-0.0103759765625,
-0.0458984375,
-0.072265625,
-0.0025787353515625,
0.1064453125,
-0.0281982421875,
-0.036376953125,
-0.0235595703125,
-0.033935546875,
-0.0218505859375,
-0.06689453125,
-0.042236328125,
0.01806640625,
... | 17,655 | 17655 | |
Probability Proof
February 3rd 2011, 04:46 PM #1
MHF Contributor
Joined
Mar 2010
From
Florida
Posts
3,093
Thanks
5
Probability Proof
Let A and B be events in a sample space with positive probabilities. Prove that $P(B|A)>P(B)\iff P(A|B)>P(A)$
The seems relatively easy.
1st direction: $P... | 4 | [
-0.060791015625,
0.0022735595703125,
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-0.0005340576171875,
0.03466796875,
0.078125,
-0.03076171875,
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0.048095703125,
0.08203125,
0.059814453125,
0.12451171875,
-0.00506591796875,
... | 17,656 | 17656 | |
Sensitivity of methods for estimating breeding values using genetic markers to the number of QTL and distribution of QTL variance
Abstract
The objective of this simulation study was to compare the effect of the number of QTL and distribution of QTL variance on the accuracy of breeding values estimated with genomewide ... | 4 | [
-0.037353515625,
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0.0066223144... | 17,657 | 17657 | |
For how many ordered pairs (x, y) that are solutions of the
Author Message
TAGS:
For how many ordered pairs (x, y) that are solutions of the [#permalink] 14 Jan 2011, 15:40
... | 4 | [
0.064453125,
0.01446533203125,
0.03271484375,
-0.0206298828125,
-0.0034942626953125,
0.055419921875,
0.034423828125,
0.026123046875,
0.02001953125,
-0.0024566650390625,
0.048095703125,
0.062255859375,
0.030029296875,
-0.0020294189453125,
-0.0150146484375,
0.1220703125,
-0.04370117187... | 17,658 | 17658 | |
harder gradient
June 18th 2008, 02:27 AM
Paulo1913
harder gradient
This is the question:
The gradient of the line joining (-1,3) to (p,q) is -2. The gradient of the line joining (p,q) to (5,2) is -1. Calculate the values of p and q
What I have done is created two equations:
(q-3)/(p--1)=-2
and... | 4 | [
-0.15625,
-0.0115966796875,
0.005584716796875,
0.010498046875,
-0.032470703125,
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0.0147705078125,
0.005645751953125,
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-0.004364013671875,
-0.0107421875,
0.03125,
0.087890625,
-0.011962890625,
0.026611328125,
-0.0732421875,
-0.038818359375,
... | 17,659 | 17659 | |
find the critical numbers of the function:
October 26th 2009, 04:28 PM
hazecraze
find the critical numbers of the function:
$f(x)=x^\frac{4}{5}(x-4)^2$
find the critical numbers of the function:
$f'(x)=\frac{4}{5}x^\frac{-1}{5}(x-4)^2 + 2(x-4)(x^\frac{4}{5})<br />$
factor a term out:
$x^\frac{-... | 4 | [
0.039794921875,
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0.04541015625,
0.0167236328125,
0.035400390625,
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0.052734375,
-0.046875,
0.03466796875,
0.02490234375,
-0.1640625,
... | 17,660 | 17660 | |
Math Help
need help solving this diff plz 3y´ - y = 5x
I may be wrong, but i don't think you can solve that because there is only one equation and two unknowns.
Hello again, yes I know its a diff equation but I would need some guidence and help solving it =). thank you
You can use an integrating factor: First $y' -... | 5 | [
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0.062... | 17,661 | 17661 | |
Simple Harmonic Motion Derivation of frequency
June 9th 2011, 08:27 AM #1
Junior Member
Joined
Mar 2011
Posts
68
Simple Harmonic Motion Derivation of frequency
Ok i know how to deduce the angular frequency for the basic problem of:
$\frac{d^{2}x}{dt^{2}} = -\frac{kx}{m}$
You simple do:
$x = -... | 4 | [
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0.11962890625,
-0.0201416015625... | 17,662 | 17662 | |
finding cdf of standard uniform
November 23rd 2010, 03:17 PM #1
Junior Member
Joined
May 2010
Posts
42
finding cdf of standard uniform
A question about unifrom rv.
If $X \;and\; Y$ are independent $standard \;uniform$ random variables. and we want to find the cumulative distribution of $X-2Y$
t... | 4 | [
-0.01513671875,
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0.0283203125,
-0.095703125,
0.01348876953125,
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0.0177001953125,
0.048583984375,
0.095703125,
0.078125,
0.03759765625,
0.0078125,
-0.1259765625,
-0.06... | 17,663 | 17663 | |
How to handle negative momentum
We have a variable-inertia flywheel coupled by a shaft to a fixed inertia flywheel. The VIF (variable-inertia flywheel) has a moment of inertia range of 10 to 5 (m2*kg) and an initial velocity of 100
(rad/s). The fixed inertia flywheel (fw) has a MI (moment of inertia) of 10. The initial... | 4 | [
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0.0198974609375,
0.07617... | 17,664 | 17664 | |
Average power used by circuit?
1. The problem statement, all variables and given/known data
If the rms voltage across the generator is 149 V, calculate the average power P(at 402 Hz) being used by the circuit.
R = 298 Ω, a capacitance C = 4.1 μF, inductance of L = 0.23 H
2. Relevant equations
V=IR
Avg power=Vrms... | 4 | [
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0.0166015625,
0.055419921875,
-0.04248046875,
0.0283... | 17,665 | 17665 | |
Patent US3573380 - Single-sideband modulation system
United States Patent SINGLE-SIDEBAND MODULATION SYSTEM Field of Search 179/15 (SSB),15(AEC),15(ACS);332/45,9,l0
Primary ExaminerKathleen H. Claffy Assistant ExaminerTom DAmico Attorneys-R. J. Guenther and William L. Keefauver ABSTRACT: A multichannel, frequency-divi... | 4 | [
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0.01556396484375,
0.00372314453125,
0.044921875,
0.0296630859375... | 17,666 | 17666 | |
Integrals with no limits. (Backwards differientation)
Consider this problem: given a function f(x), we wish to find a function F(x) such that F'(x) = f(x). The process is called antidifferentiation and F(x) is called an antiderivative of f(x). This
"general" problem arises in various applications.
Consider this proble... | 5 | [
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0.01519775390625,
0.057... | 17,667 | 17667 | |
Intersections of 2 lines
September 3rd 2009, 03:06 AM #1
Junior Member
Joined
May 2008
Posts
45
Intersections of 2 lines
Ok in this question, I can't draw graphs or use a calculator (I'm really wishing I could) but I need to find the intersection(s) of $y=\sqrt{x}$ and y=-x+2
I keep getting (1,4) or... | 4 | [
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0.07275390625,
-0.0380859375,
0.07568359375,
-0.0654296875,
-0... | 17,668 | 17668 | |
Series and Sequence Covergence
Show that if $\sum |a_{n} - a_{n+1}|<\infty$ then the sequence { $a_{n}$} converges, but not conversely.
Notice that $a_n=a_0+\sum_{k=1}^{n-1} (a_{k+1}-a_k)$, so that $(a_n)_{n\geq 0}$ converges if, and only if $\sum_k (a_{k+1}-a_k)$ is a convergent series. If a series is absolutely conv... | 5 | [
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-0.01397705078125,
-0.05810546875,
-0.1015625,
0.07958984375,
-0.00732... | 17,669 | 17669 | |
Find another point on the curve with the same tangent.
February 20th 2011, 06:54 AM
RogueDemon
Find another point on the curve with the same tangent.
Question:
Find the equation of the tangent to $y = 8x^4 + 40x^3 + 26x^2 - 63x + 24$ at the point (3,-15). Find another point on the curve which has exactly th... | 5 | [
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0.0810546875,
0.01123046875,
0.004302978515625,
0.12890625,
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0.06591796875,
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0.02099609375,
0.10205078125,
-0.07568359375,
0.0062255859375... | 17,670 | 17670 | |
Interest, compounded quarterly..
July 7th 2009, 03:08 AM #1
Newbie
Joined
Jul 2009
Posts
11
Interest, compounded quarterly..
I am unsure/unaware of the formula and how to use it to complete this problem. Any help is greatly appreciated.
Art invests $2700 in a savings account that pays 9% interest, c... | 4 | [
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-0.05126953125... | 17,671 | 17671 | |
prove this analysis claim
Assume there is a c in (0,1) such that f(c)>0, then (by the mean value theorem) there are points u in (0,c) and v in (c,1) such that f'(u)>0 and f'(v)<0. But f''(x)>=0, x in [0,1] implies that f'(x)
is non-decreasing on [0,1], which contradicts the above. Hence there is no point c in (0,1) suc... | 4 | [
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-0.018310546875,
-0.02... | 17,672 | 17672 | |
Proof Help
November 29th 2012, 04:37 PM #1
Newbie
Joined
Jul 2008
Posts
17
Proof Help
Given: PSTV is a parallelogram; PQ is congruent to RQ
Prove: Angle STV is congruent to angle R
Please see my attachment for the actual information.
Thank you in advance for any help. I cannot figure out ho... | 4 | [
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-0.04931640625,
0.0008544921875,... | 17,673 | 17673 | |
SAT problem help
October 10th 2006, 05:57 PM #1
mets9131
Guest
SAT problem help
For Pre calc cannot figure this out even though I know it is simple
A standard 8 1/2 X 11 inch sheet of paper is rolled along its short side to for a cylinder that is 8 1/2 inches high
A second sheet of standard 8 1/2 X 11 i... | 4 | [
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0.062... | 17,674 | 17674 | |
Factor Formula
March 19th 2008, 12:58 AM #1
When my textbook proving $\frac{d}{dx}(sin\theta)=cos\theta$, it mentions about "Factor Formula", but it never mention it detailly, so I don't understand it.
Can anyone tell me what is "Factor Formula"?
To find $\lim_{\theta \rightarrow 0}{\frac{sin\theta}{\... | 5 | [
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0.035400390625,
0.0162353515625,
-0.03100585... | 17,675 | 17675 | |
On Asymptotically Lacunary Statistical Equivalent Set Sequences
Journal of Mathematics
Volume 2013 (2013), Article ID 310438, 5 pages
http://dx.doi.org/10.1155/2013/310438
Research Article
On Asymptotically Lacunary Statistical Equivalent Set Sequences
Department of Mathematics, Faculty of Science and Literature, Af... | 5 | [
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0.029541015625,
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-0.04345703125,
0.0205078125,
-0.06591796875,
0.00201416015625,
0.002166748046875,
... | 17,676 | 17676 | |
Using a Barometer to Determine Altitudes
VocExile Main Menu /Determining Altitudes
Using a Barometer to Determine Altitudes
By Ed Perley
Do you ever wonder how deep that ravine behind you house is? Or how high that hill above your town is? Or how tall is the that big building on main street? You can easily estimate ... | 4 | [
0.032958984375,
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0.033203125,
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-0.0076904296875,
0.0279541015625,
-0.0015716552734375,
0.0505... | 17,677 | 17677 | |
Unions of subspaces
September 8th 2009, 11:38 AM #1
Unions of subspaces
Question: Let $W_1, W_2$ be subspaces of vector space $V$. Prove that $W = W_1 \cup W_2$ is a subspace of $V$ if and only if $W_1 \subseteq W_2$ or $W_2 \subseteq W_1$.
I managed to prove it one way. I managed to show that if $W_1 \subse... | 4 | [
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0.00823974609375,
-0.0120849609... | 17,678 | 17678 | |
Ted Odell
I was shocked and saddened to hear about a week ago that Ted Odell, a mathematician to whom I owe a lot, died suddenly on January 9th of a heart attack while he was travelling to this year’s joint
AMS/MAA meeting in San Diego. He was 65, but seemed a lot younger.
Ted was a world leader in Banach space theor... | 4 | [
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-0.01544189453125,
-0.05... | 17,679 | 17679 | |
Recurrence relations
November 30th 2010, 03:19 AM #1
Junior Member
Joined
Nov 2010
Posts
41
Recurrence relations
If I have a recurrence relation such as:
$a(n) = A*a(n-1) + B*a(n-2)$ where $a(0)=X, a(1)=Y$
how do I solve this?
Wikipedia explains how to solve such an equation and I used it an... | 4 | [
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0.0625,
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0.07080078125,
0.004486083984375,
0.07373046875,
-0.061767578125,
-0... | 17,680 | 17680 | |
Rog's Rag-bag
Maths, logic, trivia, puns, general silliness - an assortment of stuff too disparate to go under any other title. In other words, same old rubbish.
-1. A rebus:
012356789DRACULA
-2. Give me a word that will fit in with the following group and explain why:
settee, raccoon, embarrass
-3. Two travellers ... | 4 | [
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0.05517578125,
0.019287109375,
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0.048828125,
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0.0245361328125,
-0.01129150390625,
0.0040283203125,
0.004058837890625,
-0.0242919921875,
0.06... | 17,681 | 17681 | |
Reliable RANSAC Using a Novel Preprocessing Model
Computational and Mathematical Methods in Medicine
Volume 2013 (2013), Article ID 672509, 5 pages
http://dx.doi.org/10.1155/2013/672509
Research Article
Reliable RANSAC Using a Novel Preprocessing Model
^1School of Computer Science and Technology, Zhejiang University... | 4 | [
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-0.044677734375,
-0.03125... | 17,682 | 17682 | |
Math Help
March 26th 2007, 10:41 PM #1
Junior Member
Joined
Mar 2007
Posts
34
proof
If n is an integer that is NOT a multiple of 3, then n^2 = 1 mod 3
I did ...
to the contrary, if n is a multiple of 3 then n = 0 mod 3
then n^2 is also a multiple of 3 -> n^2 = 0 mod3 reaching a contraditi... | 4 | [
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Integral Problem ?
use $\sin (x) = 2 \sin (\frac{x}{2}) \cos (\frac{x}{2})$ $\displaystyle \int_0^{\frac{\pi}{2}}\ln (\sin(x))\;dx = \int_0^{\frac{\pi}{2}} \ln(2\sin(x/2)\cos(x/2))\dx$ $\displaystyle = \int_0^{\frac{\
pi}{2}} \ln(2)\;dx+\int_0^{\frac{\pi}{2}} \ln(sin(x/2))\;dx+\int_0^{\frac{\pi}{2}} \ln(\cos(x/2))\;dx$... | 5 | [
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Re: Probability for the first digit of a natural number being equal to 1
The definition of logarithmic density of some subset [itex]A\in\mathbb N[/itex] is
[tex]
\delta(A) \equiv
\lim_{n\to\infty} \frac{\,\,\displaystyle {\sum_{\substack{r<=n,\\r\in A}}\frac 1 r}\,\,}
{\displaystyle \sum_{r=1}^n\frac 1 r}
[/tex]
... ... | 4 | [
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Groups - Quotient groups
August 12th 2010, 01:54 AM #1
Member
Joined
Jul 2009
Posts
168
Groups - Quotient groups
Let G be a group, A be a group of all elements in G that have a finite order.
Prove that the quotient group G/A contains no elements of finite order.
Hmmm... If I assume that there i... | 5 | [
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0.... | 17,686 | 17686 | |
Calculating convertable energy
Oh OK...
You want to know the power in the movement of the water given the water speed (v=6.6m/s) and the volume flow rate (dV/dt = 5gpm). Numbers off post #1.
I'll walk you through the stages - the trick is to keep in mind what everything means so it's not just an abstract calculation.... | 4 | [
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word problem equations
February 8th 2008, 02:58 PM #1
Member
Joined
Apr 2006
Posts
85
word problem equations
I hope you guys can help me... because it's easy but for some reason I can't figure it out? -.-
1) Two hundred people attend a concert. The total receipts are $4500. If one student ticket cos... | 4 | [
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Curved Coordinate Systems and Fictitious Forces
Aristotle argued that the idea of motion in a vacuum is unintelligible, because he regarded position as the fundamental attribute of an object’s state, and any change in the state of an object
requires a “force” – essentially by definition. Thus to explain why a stone co... | 4 | [
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I need help making up a skewed PDF
March 7th 2011, 03:40 PM #1
Newbie
Joined
Mar 2011
Posts
14
I need help making up a skewed PDF
Basically I need to make up a PDF that is skewed enough that it wont really fit the CLT unless I have a large number of observations. I have no idea how to just make one up (I... | 4 | [
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[SOLVED] Prove the existence of quadratic roots
January 30th 2009, 01:13 PM
zhupolongjoe
[SOLVED] Prove the existence of quadratic roots
If ab>0 and bc<0, then ax^2+bx+c=0 has two real solutions. (Prove this)
I started, but I don't know.
Let a, b, c be real.
Assume ab>0 and bc<0.
So bc<ab
S... | 4 | [
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Patent US5978489 - Multi-actuator system for active sound and vibration cancellation
This is a Continuation-in-Part of Provisional Application 60/045,881 filed May 5, 1997.
The present invention is directed to a multi-actuator system for active sound and vibration cancellation and more specifically to a system where m... | 4 | [
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Chaos Theory Problem
April 19th 2010, 05:58 PM
Khonics89
Chaos Theory Problem
The one-dimensional mapping x(n+1) =ax^2(n)(1 − x(n))
has been used as a toy model for the sunspot cycle.
0 < x(n) < 1 and 0 < a< 6.75; here x(n) is the phase space variable, and a
is a
parameter.
(a) Show algebrai... | 5 | [
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infinite sequence
December 6th 2011, 10:01 PM
jaqueh
infinite sequence
What does the series converge to where
[a_1]=√12
[a_n+1]=√(12+a_n) ?
I tried:
L = √(12+√(12+√(12+...)))
then L^2 = 12+√(12+√(12+...))
then L^∞ = 12^∞ + 12^∞-1...+12
thus L = ∞√(12^∞ + 12^∞-1...+12) but i dont thin... | 4 | [
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Cartesian equation.
August 9th 2009, 05:22 PM
Murphie
Cartesian equation.
Would someone mind telling me how to find the indicated direction in the problem below? Help with (b) would also be greatly appreciated!
(a) Graph the parametrized curve described by x = 2 cos t, y = -sin t, 0≤t≤pi. Indicate the direc... | 4 | [
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... | 17,695 | 17695 | |
double integration
December 1st 2009, 11:31 AM #1
Newbie
Joined
Jul 2009
Posts
16
double integration
can someone help me solve it?
(integral from 0 to 4) dx (integral form x/2 to x^1/2) dy (x^2 - y^1/2)=
I ended up with:
(76/56) - (64*2^1/2)/21 + 64/(15*2^1/2)
help!!!
Hey, maybe ... | 5 | [
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Rectangle and Ellipse
June 16th 2009, 11:02 AM #1
Junior Member
Joined
Jun 2009
Posts
58
We have a Rectangle with sides parallel to axes (x and y). The rectangle is inside of the Ellipse $x^2/a^2$$+$$y^2/b^2$$= 1$
$a$and $b$> $1$.
Calculate the dimensions of the rectangle with maximum area.
... | 5 | [
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Brevet US3566267 - Burst synchronization method and apparatus
L. s. comma 3,566,267
BURST SYNCHRONIZATION METHOD AND APPARATUS Filed Oct. 30, 1968 3 Sheets-Sheet 1 HGI F AM E 2 5 sec r 1 ETIFllAIIBIICIIDlIEIIFIIAIFB I FIG 2 INVENTOR LEONARD SHELDON GOLDING L L MMML J BY 5 PM 1mg 2:;
VAC ow ATTORNEYS Feb. 23, 1971 File... | 4 | [
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Second Order Difference Equation- Cournot
April 5th 2009, 02:30 AM #1
Newbie
Joined
Apr 2009
Posts
9
Second Order Difference Equation- Cournot
Hi , i hope someone can help me with this. I am aware of how to solve diffrence equations however unsure about how to approach this. any help greatly appreciated.... | 5 | [
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