content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Math Help
August 27th 2008, 02:31 PM #1
Newbie
Joined
Aug 2008
Posts
5
NPV
Hello and thank you for reviewing this post: Any insight would be grateflu on this end.
Can an NPV of investment be negative?
Is there a calculator on line that can check my work for a investment building with cost 35mil... | 5 | [
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0.0810546875,
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0.0196533203125,
-0.09765625,
0.018798... | 31,300 | 31300 | |
how to do a long division for this cube expression
September 26th 2006, 06:17 PM #1
Member
Joined
Sep 2006
Posts
99
how to do a long division for this cube expression
(4x^3 + x^2 + 8x + 4) / (x^2 + 2)
The long division as follows:
4x
_______________________
(4x^3 + x^2 + 8x + 4)
4x... | 4 | [
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0.046630859375,
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0.048095703125,
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0.0756835... | 31,301 | 31301 | |
Terminating Unfolds (2)
After seeing our code, Nils Anders Danielsson suggested two improvements. Firstly, to wrap the bound in the seed. The terminating unfoldr↓ would thus have a simpler type as well as a simpler
implemenation:
unfoldr↓ : {a : Set}(b : ℕ -> Set){n : ℕ} ->
(f : forall {i} -> b (suc i) -> ⊤ ⊎... | 4 | [
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0.02197265625,
0.12890625,
-0.037353515625,... | 31,302 | 31302 | |
Double integration with polar coordinates
January 15th 2009, 12:50 PM #1
Junior Member
Joined
Nov 2008
Posts
68
By changing to polar coordinates, evauluate the integral (where a>0):
int[0,a]int[0,sqrt(a^2-x^2)](x^2 + y^2)dydx
Sorry I don't know latex, ill say it in words...
"...The integral... | 4 | [
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... | 31,303 | 31303 | |
Find the length of the curve
December 6th 2009, 08:47 AM #1
Junior Member
Joined
Nov 2009
Posts
39
Find the length of the curve
I have tried this one over and over and can't get the right answer. Can anyone help?
Consider the parametric equation
x = 16(cosθ+ θsinθ)
y = 16(sinθ− θcosθ)
Wh... | 5 | [
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0.0031433105... | 31,304 | 31304 | |
Some binomial fractional equations
January 31st 2009, 03:21 PM #1
Newbie
Joined
Jan 2009
Posts
2
Some binomial fractional equations
I have been presented with the following equation:
$\frac{x}{x + 3} + \frac{1}{x - 3} = 1$
According to the text, the solution is 6. I have been unable to reach thi... | 4 | [
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0.0028839111328125,
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-0.0079956054687... | 31,305 | 31305 | |
Slope of Tangent Intersecting with Line
November 7th 2009, 09:32 AM #1
Member
Joined
Sep 2009
Posts
78
Slope of Tangent Intersecting with Line
Determine the slope of the tangent to y=x^2+9x+9 at the point where the curve intersects the line y=3x.
The answer in the textbook is just 3. Why is this so... | 4 | [
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0.040283203125,
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0.00970... | 31,306 | 31306 | |
Constraint Consensus Methods for Finding Interior Feasible Points in Second-Order Cones
Journal of Applied Mathematics
Volume 2010 (2010), Article ID 307209, 19 pages
http://dx.doi.org/10.1155/2010/307209
Research Article
Constraint Consensus Methods for Finding Interior Feasible Points in Second-Order Cones
^1Depar... | 5 | [
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Density current under surface waves
and
R
is the reflection coefficient. Without loss of generality,we may take
a
and
to be real. Our focus will only be on thecases in which the coefficient
R
is real and in the range 0
R
1. The wave is purely progressive when
R
0, andbecomes purely standing when
... | 4 | [
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Chaos Theory (Demo of C++ CGI script)
Chaos Theory (Demo of C++ CGI script)
This demonstrates how to wrap a CGI script around a C++ program.
The Logistic map
This demonstrates the chaotic process that may result when you repeatedly apply the update:
x := λ x (1-x)
for certain values of λ (lambda) and cert... | 4 | [
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Check please, and take a look at other questions..
July 20th 2006, 09:11 PM #1
Newbie
Joined
Jul 2006
Posts
17
Check please, and take a look at other questions..
Monica is planning a party to be held at the local community hall. She is told by the hall manager that the cost, C, varies partially with the ... | 4 | [
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Simple Contrapositive Proof
December 19th 2009, 03:36 AM
Stylis10
Simple Contrapositive Proof
Let $n \in \mathbb{Z}$ be an integer with $n \ge 0$. State and prove the contrapositive of the
following statement: If $n^2$ is an odd number, then n is odd.
I can prove this by substituting n for 2m and provin... | 4 | [
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0.03125,
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0.03564453125,
0.06... | 31,311 | 31311 | |
A Proximal Point Method Involving Two Resolvent Operators
Abstract and Applied Analysis
Volume 2012 (2012), Article ID 892980, 12 pages
http://dx.doi.org/10.1155/2012/892980
Research Article
A Proximal Point Method Involving Two Resolvent Operators
Department of Applied Sciences, Botswana International University of... | 5 | [
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... | 31,312 | 31312 | |
Math Help
January 23rd 2011, 02:08 AM #1
Newbie
Joined
Jan 2011
Posts
6
Derivative
Hello.
Could someone explain me the following in the subject of derivative.
y = ln x ; y'= 1/x
Following that rule why doesn't y =ln x^5 equal y' = 1/x^5 but instead y' = 5/x
If someone could explain me... | 4 | [
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On Pseudohyperbolical Smarandache Curves in Minkowski 3-Space
International Journal of Mathematics and Mathematical Sciences
Volume 2013 (2013), Article ID 658670, 7 pages
http://dx.doi.org/10.1155/2013/658670
Research Article
On Pseudohyperbolical Smarandache Curves in Minkowski 3-Space
^1Department of Mathematics,... | 5 | [
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Desperate! Help! 3 Probability Questions
January 30th 2007, 02:39 PM
Ruichan
Desperate! Help! 3 Probability Questions
1. Let Y ~ Binomial(n,p) with pmf pY(y).Obtain the value of y for which pY(y) is maximum.
2. Let Y ~ geometric(p) with pmf pY(y).
(a) Show that the value p = 1/y maximizes the pmf.
(... | 5 | [
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Homework Help
Posted by Amelia on Saturday, November 21, 2009 at 8:26am.
keep getting stuck
for integrate e^(bx) cos x
i get
= cos x e^bx/b - int -sin x e^bx/b
= cos x e^bx/b - -sin x e^bx/b^2 - int - cos x e^bx/b^2
this is where i get stuck please help
• Maths - bobpursley, Saturday, November 21, 2009 at 9:05... | 5 | [
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Bounds of Solutions of Integrodifferential Equations
Abstract and Applied Analysis
VolumeΒ 2011Β (2011), Article IDΒ 571795, 7 pages
http://dx.doi.org/10.1155/2011/571795
Research Article
Bounds of Solutions of Integrodifferential Equations
Department of Mathematics, Faculty of Electrical Engineering and Communicati... | 5 | [
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Uniqueness of Meromorphic Functions Sharing Fixed Point
International Journal of Analysis
Volume 2013 (2013), Article ID 538027, 12 pages
http://dx.doi.org/10.1155/2013/538027
Research Article
Uniqueness of Meromorphic Functions Sharing Fixed Point
Department of Mathematics, Karnatak University, Dharwad 580003, Indi... | 5 | [
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Optimal Control of a Viscous Shallow Water Equation
Advances in Mathematical Physics
Volume 2013 (2013), Article ID 715959, 8 pages
http://dx.doi.org/10.1155/2013/715959
Research Article
Optimal Control of a Viscous Shallow Water Equation
^1Taizhou Institute of Science and Technology (NUST) Taizhou, Jiangsu 225300, ... | 5 | [
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Math - x-intercepts and y-intercepts
Posted by CheezyReezy on Thursday, June 9, 2011 at 12:46pm.
Hi,
can someone help me with intercepts.
find the intercepts of
f(x) = x^2 - 6x - 2
can someone show how to work this problem.
thanks.
• Math - x-intercepts and y-intercepts - Henry, Friday, June 10, 2011 at 8:35pm... | 4 | [
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Infinite series : convergence.
July 11th 2008, 01:32 PM #1
Infinite series : convergence.
$\sum_{n=1}^{+\infty} \frac{2^nn!}{n^n}$. I must show whether it converges or not. Using my intuition I think it converges. I tried to use the root test, the only test I think that works.
So I'm stuck when I must find th... | 5 | [
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Derivatives of exponential functions
November 29th 2009, 02:22 AM #1
Newbie
Derivatives of exponential functions
This will require the chain rule and using logarithmic differentiation
$y = \frac{(x^2+2)^{\frac{3}{2}}(x^2+9)^{\frac{4}{9}}}{ (x^3+6x)^{\frac{4}{11}}}$
$ln(y) = ln \left(\frac{(x^2+2)^{\fra... | 5 | [
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0.069824218... | 31,322 | 31322 | |
Wind Turbine Placement Optimization by means of the Monte Carlo Simulation Method
Modelling and Simulation in Engineering
Volume 2014 (2014), Article ID 760934, 8 pages
http://dx.doi.org/10.1155/2014/760934
Research Article
Wind Turbine Placement Optimization by means of the Monte Carlo Simulation Method
^1Departmen... | 4 | [
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-... | 31,323 | 31323 | |
Congruence Help!
June 28th 2011, 04:20 PM #1
Junior Member
Joined
Jun 2011
Posts
45
Congruence Help!
I feel really silly not being able to figure this out -- the problems come from a proof an example of the Chinese Remainder Theorem. I have tried multiplying and adding and subtracting and such
on scr... | 5 | [
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A Priori Knowledge and Probability Density Based Segmentation Method for Medical CT Image Sequences
BioMed Research International
Volume 2014 (2014), Article ID 769751, 11 pages
http://dx.doi.org/10.1155/2014/769751
Research Article
A Priori Knowledge and Probability Density Based Segmentation Method for Medical CT I... | 4 | [
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0... | 31,325 | 31325 | |
the encyclopedic entry of second derivative
In
calculus
, a branch of
mathematics
, the
second derivative test
is a criterion often useful for determining whether a given
stationary point
of a function is a local
maximum
or a local
minimum
.
The test states: If the function $f$ is twice differentiable in a... | 4 | [
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Ma
help m1 first
Title
[M-1] first — Introduction and first session
Description
Mata is a component of Stata. It is a matrix programming language that can be used interactively or as an extension for do-files and ado-files. Thus
1. Mata can be used by users who want to think in matrix terms and perform... | 5 | [
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-0.036376953125,
-0.004669189453125,
0.045166015625,
-0.03369140625,
0.051025390625,
0.1044921875,
-0.00543212890625,
0.052978515625,
0.042236328125,
0.0306396484375,
0.006439208984375,
-0.0179443359375,
... | 31,327 | 31327 | |
Design of a Real Coded GA Based Fuzzy Controller for Speed Control of a Brushless DC Motor
1. Introduction
Fuzzy controllers are nonlinear elements used in the control of linguistically defined systems, which can not be modeled accurately. Besides, they are an effective approach for various complex and
ill-defined sys... | 4 | [
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... | 31,328 | 31328 | |
Conics, Parametric Equations, & Polar Coordinates
September 12th 2007, 06:30 AM
googoogaga
Conics, Parametric Equations, & Polar Coordinates
I have no clue how to do these problems! Could someone help please??
Thanks.
1) Sketch the curve represented by the following parametric equations ( indicate the o... | 4 | [
-0.0419921875,
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... | 31,329 | 31329 | |
Prime elements and maximal ideals in a PID
March 19th 2009, 10:34 AM #1
Newbie
Joined
Mar 2009
Posts
22
Prime elements and maximal ideals in a PID
Here is the problem I have:
Let $R$ be a PID and $p \in R$. Prove that the ideal $\langle p \rangle$ is maximal in $R$ if and only if $p$ is a prime elem... | 5 | [
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0.03515625,
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... | 31,330 | 31330 | |
Homework Help
Posted by shawn on Saturday, May 14, 2011 at 11:40am.
If cos 0 = - 1/2 and tan 0 > 0, find the quadrant that contains the terminal side of 0, and then find the exact values of the other five trig functions of 0.
• trig - Anonymous, Saturday, May 14, 2011 at 12:09pm
The cosine is positive in I and... | 4 | [
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How many triplets
April 16th 2012, 06:37 AM #1
Member
Joined
Sep 2011
Posts
149
How many triplets
If we have X,Y,Z,8 are digits for a number that have 4 digits and we arrange them in two ways:
8 x y z , z y x 8 if x>y>z and 8 x y z-z y x 8=7623 how many triplets (x ,y , z) are possible ?
Re: How man... | 4 | [
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Materials Research
Services on Demand
Article
Indicators
Related links
Share
Print version ISSN 1516-1439
Mat. Res. vol.7 no.2 São Carlos Apr./June 2004
http://dx.doi.org/10.1590/S1516-14392004000200005
... | 4 | [
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0.05126953125,
0.0205078125,
-0.0306396484375,
0.0322265625,
-0.02050781... | 31,333 | 31333 | |
ti
Optimizing the Sieve of Eratosthenes
by , July 9th, 2012 at 06:29 PM (6041 Views)
The Sieve of Eratosthenes is one of the fastest methods for generating a list of prime numbers less than a given number n. A general description of the algorithm is given below:
1. Initialize a list representing the numbers ... | 4 | [
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0.006591796875,
0.... | 31,334 | 31334 | |
Galois Group, FTG
March 15th 2009, 08:03 PM #1
Newbie
Joined
Mar 2009
Posts
4
Galois Group, FTG
(a) Find a splitting field $K$ for the polynomial $f(x)=(x^2-3)(x^2-5) \in \mathbb{Q}[x]$.
(b) Determine the Galois Group of $K$ over $\mathbb{Q}$.
(c) Find all intermediate fields between $\mathbb{Q}$... | 5 | [
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0.034912109375,
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-0... | 31,335 | 31335 | |
A Regularity Criterion for Compressible Nematic Liquid Crystal Flows
ISRN Mathematical Analysis
Volume 2013 (2013), Article ID 271324, 4 pages
http://dx.doi.org/10.1155/2013/271324
Research Article
A Regularity Criterion for Compressible Nematic Liquid Crystal Flows
^1Department of Applied Mathematics, Nanjing Fores... | 5 | [
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Finite subgroup of Q/Z
Wow, now this problem when I first read it I thought, no way this can be true. I spent forever trying to come up with a counter example instead of actually just trying to prove it. I am not positive
if this method holds up or not, but it was what came to mind, let me know what you think. So first... | 5 | [
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0.126953125,
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0.02062... | 31,337 | 31337 | |
A Simulation Optimization Approach to Epidemic Forecasting
Abstract
Reliable forecasts of influenza can aid in the control of both seasonal and pandemic outbreaks. We introduce a simulation optimization (SIMOP) approach for forecasting the influenza epidemic curve.
This study represents the final step of a project aim... | 4 | [
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A Stackelberg-Game-Based Power Control Algorithm for Wireless Mesh Networks
Abstract and Applied Analysis
Volume 2013 (2013), Article ID 832309, 10 pages
http://dx.doi.org/10.1155/2013/832309
Research Article
A Stackelberg-Game-Based Power Control Algorithm for Wireless Mesh Networks
Chongqing Engineering Laboratory... | 4 | [
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0.08984375,
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... | 31,339 | 31339 | |
Math Help
April 23rd 2010, 02:37 PM #1
Junior Member
Joined
Apr 2010
Posts
25
derivatives
I need to find the derivative of y = sqrt(x-1), using the derivative formula f(x + h) - f(x) / h
At the moment I have sqrt((x+h) -1) - sqrt(x-1) / h
I tried multiplying the top and bottom by the conjugate... | 4 | [
0.039794921875,
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0.09326171875,
-0.03076171875,
-0.031982421875,
-... | 31,340 | 31340 | |
Order statistics
February 9th 2010, 01:25 PM
Azizi
Order statistics
Hey I am having difficulties with this problem, can anyone help please?
Let Y1, Y2,...,Yn be independent, uniformly distributed random variables on the interval [0, θ]. Find the joint density function of Y(j) and Y(k) where j and k are int... | 4 | [
-0.0289306640625,
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0.023681640625,
0.01135253... | 31,341 | 31341 | |
Volume/Convergence
May 6th 2006, 09:55 AM #1
Senior Member
Joined
Apr 2006
Posts
401
Volume/Convergence
Hello,
A forewarning, this problem does take a lot of time. So thanks in advance for the help.
The problem is as follows:
"Let f(x) = [12(x^4 + 1)]/[2x^4 + 3x^2 + 2]. Consider the solid ... | 5 | [
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-0.05... | 31,342 | 31342 | |
another exponential world problem
June 8th 2008, 08:30 PM #1
Member
Joined
May 2008
Posts
76
another exponential world problem
The accompanying table shows the number of milligrams, y, of a dose of a cold medication that remains in the body x hours after the dose has been ingested.
x(hrs) 2, 3, 5, 7... | 4 | [
0.00152587890625,
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Anchor-Node-Based Distributed Localization with Error Correction in Wireless Sensor Networks
International Journal of Distributed Sensor Networks
Volume 2012 (2012), Article ID 975147, 14 pages
http://dx.doi.org/10.1155/2012/975147
Research Article
Anchor-Node-Based Distributed Localization with Error Correction in W... | 4 | [
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0.053955078125,
0.07177734... | 31,344 | 31344 | |
Factoring problem.
November 23rd 2012, 10:07 AM
KhanDisciple
Factoring problem.
Hello, I am reviewing some algebra concepts for a class I will be taking in the spring. I a trying to factor the polynomial: x^4-11x^2y^2+y^4. I know the answer is (x^2-3xy-y^2)(x^2+3xy-y^2). A
hint was given to add a term to mak... | 4 | [
0.01953125,
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-0.02880859375,
-0.... | 31,345 | 31345 | |
ANOVA and random effects model
March 2nd 2009, 09:32 AM #1
Newbie
Joined
Feb 2009
Posts
4
ANOVA and random effects model
Consider a one-way layout in which $I$ groups being compared are regarded as a sample from some larger population. $J$ is the number of subsamples taken from each $I$. The random effec... | 4 | [
0.0390625,
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-0.02294921875,
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0.06005859375,
-0.01043701171875,
0.036376953125,... | 31,346 | 31346 | |
A Novel Algorithm of Stochastic Chance-Constrained Linear Programming and Its Application
Mathematical Problems in Engineering
Volume 2012 (2012), Article ID 139271, 17 pages
http://dx.doi.org/10.1155/2012/139271
Research Article
A Novel Algorithm of Stochastic Chance-Constrained Linear Programming and Its Applicatio... | 5 | [
-0.051025390625,
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-0.0... | 31,347 | 31347 | |
the encyclopedic entry of o stern
In
physics
, the
Dirac equation
is a
relativistic quantum mechanical
wave equation formulated by British physicist
Paul Dirac
in 1928 and provides a description of
elementary spin-½
particles, such as
electrons
, consistent with both the principles of quantum mechanics and ... | 4 | [
-0.15625,
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0.019165039... | 31,348 | 31348 | |
Physics307L F08:People/Le/Notebook/071001
From OpenWetWare
Calculations
--Linh N Le 15:54, 1 October 2007 (EDT)
Part 1
In the first part of the lab, we measured the time it took to return to a certain % of the stopping potential for different wavelengths of light and for different intensities of said light. Since
... | 5 | [
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-0.0791... | 31,349 | 31349 | |
saddle point
May 7th 2008, 05:07 AM #1
Member
Joined
Jan 2008
Posts
114
saddle point
Find both stationary points of:
$f(x,y) = 2x^3 + 3x^2 + 6xy^2 + 9y^2 - 5$
and identify the nature of each one. Show on a diagram which points near the saddle point are such that
f > - 4 and which points a... | 5 | [
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I'm having a lot of trouble with the Cauchy product of two infinite series
October 1st 2011, 08:37 PM
s3a
I'm having a lot of trouble with the Cauchy product of two infinite series
My work and the question along with a solution is attached. My work starts at #5 written in blue. I am also attaching the Cauchy Pro... | 5 | [
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-... | 31,351 | 31351 | |
A regularity property of transition matrices for the cat map
up vote 6 down vote favorite
1
I've noticed a rather strange phenomenon (not important for my particular research, but interesting) and wouldn't be surprised if someone more versed in symbolic dynamics (i.e., just about anyone who
knows what those words mean... | 4 | [
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Another circle problem.
February 16th 2013, 04:26 PM
evilgummybear
Another circle problem.
"The central angles of a circle are six consecutive odd integers. What is the measure of the largest prime angle?" Please answer the question, thank you!
February 16th 2013, 06:56 PM
zhandele
Re: Another circle problem.... | 4 | [
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TOA-Based Source Localization: A Linearization Approach Adopting Coordinate System Translation
International Journal of Distributed Sensor Networks
Volume 2013 (2013), Article ID 379369, 6 pages
http://dx.doi.org/10.1155/2013/379369
Research Article
TOA-Based Source Localization: A Linearization Approach Adopting Coo... | 4 | [
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0.08349609375,
... | 31,354 | 31354 | |
Calculating the distance between a point and a line.
October 3rd 2011, 10:07 PM #1
Junior Member
Joined
Apr 2011
Posts
43
Calculating the distance between a point and a line.
Hi everyone,
The question is as follows: “Find the distance from the point Q (3, 5,-1) to the line x=3t, y= 3-2t, z= 2 + t. ... | 5 | [
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0.0244140625,
0.0322265625,
-0.036865234375,
-0.00433349609375,
-0.08544921875,
-0.059326171875,... | 31,355 | 31355 | |
Help with logic formulas
August 19th 2011, 07:13 PM #1
Senior Member
Joined
Sep 2009
Posts
299
Consider a first-order language with ternary predicate P and equality predicate =. We define the formulas F1, F2, F3 as follows.
F1: ∀x∀y∃zP(x,y,z).
F2: ∀x∀y∀z∀u∀v∀w∀t (P(x,y,u) ∧ P(u,z,w) ∧ P(y,z,v) ∧ P... | 5 | [
0.010986328125,
0.014404296875,
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0.125,
0.08642578125,
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Parameters Estimation of the Rakhmatov and Vrudhula Model from the Optimization Method Search in Improved Network
ISRN Applied Mathematics
Volume 2014 (2014), Article ID 958538, 9 pages
http://dx.doi.org/10.1155/2014/958538
Research Article
Parameters Estimation of the Rakhmatov and Vrudhula Model from the Optimizati... | 4 | [
0.004730224609375,
0.033447265625,
-0.0380859375,
0.035888671875,
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the encyclopedic entry of stresses
In
fluid dynamics
, the
Reynolds stresses
(or, the Reynolds
stress tensor
) is the stress tensor in a fluid due to the random turbulent fluctuations in fluid momentum. The stress is obtained from an average (typically in some loosely defined fashion) over these
fluctuations.
To... | 4 | [
0.01226806640625,
-0.09130859375,
0.08935546875,
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0.0327148... | 31,358 | 31358 | |
MathGroup Archive: July 2001 [00433]
[Date Index] [Thread Index] [Author Index]
Re: Re: Re: [Q] Generalized Partitions
• To: mathgroup at smc.vnet.net
• Subject: [mg30082] Re: [mg30047] Re: [mg29993] Re: [mg29942] [Q] Generalized Partit... | 4 | [
-0.12890625,
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... | 31,359 | 31359 | |
Trig Limits
November 23rd 2008, 05:33 PM #1
Junior Member
Joined
Nov 2008
Posts
53
Trig Limits
I need some help with this question.
lim x->pi/4 tan(x)-cot(x) / x - pi/4
Please go slow on me because we just started trig limits and i'm still quite confused.
Recall that a derivative at a poi... | 4 | [
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Have I shown that one real number solution exists?
November 22nd 2011, 04:58 PM #1
Member
Joined
Jul 2011
Posts
196
Have I shown that one real number solution exists?
Show that there is exactly one real number $x$ for which $e^x + x = 5$. Find the integer part of this number. State any theorems you use i... | 4 | [
-0.0908203125,
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Subgroups of S4
May 10th 2010, 06:31 PM #1
Junior Member
Joined
Apr 2010
Posts
43
Subgroups of S4
Find all the 3-Sylow subgroups of S4. I am having a real hard time getting the idea behind Sylow subgroups. Can someone help me with this please?
I'll assume S4 as the symmetric group of degree 4.
... | 4 | [
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0.06591796875,
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0.001922607421875,
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Self-Similar Solutions of the Compressible Flow in One-Space Dimension
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 194704, 5 pages
http://dx.doi.org/10.1155/2013/194704
Research Article
Self-Similar Solutions of the Compressible Flow in One-Space Dimension
^1School of Economics & Management, Zhejia... | 5 | [
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0... | 31,363 | 31363 | |
Development of Artificial Neural-Network-Based Models for the Simulation of Spring Discharge
Advances in Artificial Intelligence
Volume 2011 (2011), Article ID 686258, 11 pages
http://dx.doi.org/10.1155/2011/686258
Research Article
Development of Artificial Neural-Network-Based Models for the Simulation of Spring ... | 4 | [
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LDPC Decoder with an Adaptive Wordwidth Datapath for Energy and BER Co-Optimization
VLSI Design
Volume 2013 (2013), Article ID 913018, 14 pages
http://dx.doi.org/10.1155/2013/913018
Research Article
LDPC Decoder with an Adaptive Wordwidth Datapath for Energy and BER Co-Optimization
^1CSEE Department, University of M... | 4 | [
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Homework Help
Posted by sharik on Sunday, May 22, 2011 at 4:54pm.
two dices are tossed once. let the random variable be t he sum of the up faces on the dice. A). find and graph the probability distribution of the random variable. and b) calculate the mean (or
expectation) of this distribution
• statistics - Mgraph,... | 4 | [
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advanced functions
Posted by Rinchan on Sunday, October 20, 2013 at 8:57am.
Solve the inequality 12x^3 + 8x^2 <= 3x + 2. Justify your answer.
• advanced functions - Reiny, Sunday, October 20, 2013 at 9:28am
12x^3 + 8x^2 ≤ 3x + 2
12x3 + 8x^2 - 3x - 2 ≤ 0
after some trial and errors where I tried
x ... | 4 | [
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Maximal ideal in a ring with unity.
July 15th 2010, 08:11 AM #1
Member
Joined
Feb 2009
Posts
138
Maximal ideal in a ring with unity.
Hi:
Suppose that $R$ is an arbitrary simple ring such that $R^2 notequal (0)$ and such that $R$ contains a maximal right ideal $A$ (which is certainly the case if $R$ h... | 5 | [
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Reference for the proof of this statement?
up vote 2 down vote favorite
2
Can anyone give me the reference for this statement?:
Let $M$ be a closed oriented smooth 4-manifold. Any element $a\in H_2(M)$ can be represented by a smoothly embedded, oriented surface.
I found this statement and the proof at Saveliev's boo... | 4 | [
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Coloring of a Cube
September 8th 2008, 02:56 AM #1
Newbie
Joined
Mar 2008
Posts
11
Hey.. needed some help in the analysis of this problem. Here it goes:
"A cube has six distinct colours on its faces. How many such unique cubes are possible? "
PS: The initial looks are lethally deceptive.Please d... | 5 | [
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... | 31,370 | 31370 | |
Trig proof involving secant and cosine
November 5th 2011, 09:53 PM #1
Trig proof involving secant and cosine
The problem:
Prove that sec^2 theta + cos^2 theta can never be less than 2.
I can't figure out how to go about.
I have tried to take sec^ theta as 1/cos^2 theta and cos^2 theta as sin^2 thet... | 4 | [
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0.00897216796875,
-0... | 31,371 | 31371 | |
the encyclopedic entry of future value
Future value
measures the nominal future sum of money that a given sum of money is "worth" at a specified time in the future assuming a certain interest rate, or more generally,
rate of return
; it is the
present value
multiplied by the
accumulation function
.
The value do... | 4 | [
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0.072265625,
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-0.041748046875,
-0.07177734375,
-0.001289... | 31,372 | 31372 | |
Homework Help
Posted by Shay on Thursday, August 2, 2012 at 11:32am.
What are the 3 solutions? I'm stuck! 6x=15(mod 21)
a=6,m=21,b=15 d=gcd(6,21)=3 solns.
6x=15(mod 21) 2x=5(mod 7)
21=6(3)+3
6+3(2)+0
0=6-6
6-(21-6(3))=3
6-21+18=3
6( )-21()=3
(21-6(3))(15)-6=3 ???????
• Math - Steve, Thursday, August 2, 201... | 5 | [
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partial fractions
March 26th 2009, 05:19 PM #1
Member
Joined
Oct 2008
Posts
109
partial fractions
$\int \frac{3x^5 - 7x^4 - 27x^3 + 28x^2 + 16}{x^3 - 4x^2} dx$
where the degree of the numerator is higher than the denominator, i thought i had to do polynomial long division so i got:
$<br /> \int... | 4 | [
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0.05932... | 31,374 | 31374 | |
Need help with a Fourier series
October 6th 2012, 05:33 PM #1
Member
Joined
Jun 2012
From
Georgia
Posts
176
Thanks
22
Need help with a Fourier series
The original problem is: f(x) = x if -pi<x<0, and f(x) = pi - x if 0<x<pi. I'm supposed to model this as a Fourier series. I got the sine series co... | 5 | [
-0.080078125,
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0.0458984375,
-... | 31,375 | 31375 | |
Finding output eqn using DTFT and inverse DTFT knowing impulse and input eqns!
April 22nd 2010, 03:16 AM #1
Newbie
Joined
Apr 2010
Posts
6
Finding output eqn using DTFT and inverse DTFT knowing impulse and input eqns!
Hi,
The question is apparently simple, but I am very stuck and have been working o... | 4 | [
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Proof validation
February 25th 2006, 05:20 AM #1
Junior Member
Joined
Dec 2005
Posts
58
Proof validation
I need to prove that if $a,b$ are integers then $a^2-b^2=101010$ is not possible.
My proof is this:
Since 101010 can be divided with 5 which is prime number, then one of factors $(a-b)(a+b)$ ... | 4 | [
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Shoot It In The Head
I think of myself as non-violent, a purple guy in the blue state of Massachusetts.
When it comes to proposals in science though, I go for head shots. Nature doesn’t care if we keep repackaging bullshit. A well-fed bull does not run out of bullshit.
To stop a science zombie, a bullet to the brain i... | 4 | [
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0.0... | 31,378 | 31378 | |
Integral, is my result correct?
July 18th 2008, 12:45 PM #1
Integral, is my result correct?
Just need to be sure on this : $\int \frac{dx}{2+\sin x +\cos x}$, making the substitution $x=2 \arctan (t)$ I reached that the integral is worth $\frac{2 \tan \left( \frac{x}{2}\right) }{5}+C$.
It is wrong, and your ... | 5 | [
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Ant-Based Swarm Algorithm for Charging Coordination of Electric Vehicles
International Journal of Distributed Sensor Networks
Volume 2013 (2013), Article ID 268942, 13 pages
http://dx.doi.org/10.1155/2013/268942
Research Article
Ant-Based Swarm Algorithm for Charging Coordination of Electric Vehicles
^1Key Laborator... | 4 | [
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0.02099609375,
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Nonlocal Symmetries of Systems of Evolution Equations
Advances in Mathematical Physics
Volume 2011 (2011), Article ID 456784, 14 pages
http://dx.doi.org/10.1155/2011/456784
Research Article
Nonlocal Symmetries of Systems of Evolution Equations
BIO-key International, Research and Development Department, Eagan, MN 551... | 5 | [
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... | 31,381 | 31381 | |
Operator on Hilbert space
April 26th 2010, 10:01 AM #1
Newbie
Joined
Apr 2010
Posts
17
Operator on Hilbert space
$(H, \langle .,. \rangle)$ Hilbert space, and $f_1$, $f_2$$\in H$.
Prove: $Af= \langle f,f_1 \rangle f_1 + \langle f,f_2 \rangle f_2$ is bounded linear operator, and calculate his norm.
... | 4 | [
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0.038818359375,
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-0.00106048583984375,
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Prove/disprove that a given moment generating funtion has a pron. distribution.
September 19th 2008, 01:52 PM #1
Newbie
Joined
Sep 2008
Posts
18
Prove/disprove that a given moment generating funtion has a pron. distribution.
Hello. Im trying to show if a distriubtion exists for a given moment generating ... | 5 | [
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0.01458740234375,
-0.0198974609375,
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-0.000904083251953125,
-0.0693359... | 31,383 | 31383 | |
Arithmetic sequence, geometric sequence, & geometric series
January 23rd 2007, 05:44 AM #1
Newbie
Joined
Jan 2007
Posts
10
Arithmetic sequence, geometric sequence, & geometric series
Can someone please put me on the right track to solving these problems? If you can provide an example for at least one of ... | 4 | [
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-0.033447265625,
-... | 31,384 | 31384 | |
Interest rate swap problem
June 5th 2012, 03:35 AM #1
Senior Member
Joined
Oct 2009
Posts
295
Thanks
9
Interest rate swap problem
An interest rate swap is based on the yield curve given below.
$s_{1}=0.03$
$s_{2}=0.04$
$s_{3}= x$
$s_{4}=0.05$
The fixed payment swap rate is R=0.4... | 4 | [
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0.035888671875,
-0.06982421875,
-0.02673... | 31,385 | 31385 | |
population decrease problem
April 26th 2010, 11:34 AM #1
Newbie
Joined
Apr 2010
Posts
10
population decrease problem
After treatment, a bacteria population decreases at a rate of 20% an hour.
A. Whan t=0 there are 150,000 bacteria. What is an equation that satisfies the equation?
B. How many re... | 5 | [
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New Subclasses of Biunivalent Functions Involving Dziok-Srivastava Operator
ISRN Mathematical Analysis
Volume 2013 (2013), Article ID 387178, 5 pages
http://dx.doi.org/10.1155/2013/387178
Research Article
New Subclasses of Biunivalent Functions Involving Dziok-Srivastava Operator
^1Department of Mathematics, Faculty... | 5 | [
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increasing / decreasing number algorithm (recursive)
July 9th 2008, 04:38 PM #1
increasing / decreasing number algorithm (recursive)
Working on a Project Euler problem, Bouncy numbers are defined as numbers which are not increasing or decreasing. I wrote an algorithm that determines if a number is bouncy, but I n... | 5 | [
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0.0225830078125,
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0.002410888671... | 31,388 | 31388 | |
Arrangements of letters in COONABARABRAN
December 11th 2011, 12:15 PM #1
Junior Member
Joined
Apr 2011
Posts
30
Arrangements of letters in COONABARABRAN
Find the number of different arrangements of the letters in the word
COONABARABRAN
How many of those arrangements (i) start with the six vowels;... | 4 | [
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-0.0... | 31,389 | 31389 | |
Need help approaching a simultaneous equation
March 5th 2013, 01:41 PM
Math441100
Need help approaching a quadratic, simultaneous equation
It's been overs ten years since my last calculus course, and I think I've regressed back to a pre-algebra level. Not looking for an answer here, just help getting started.
... | 4 | [
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0... | 31,390 | 31390 | |
Find points on the graph...
October 18th 2006, 01:36 PM #1
Member
Joined
Nov 2005
Posts
172
Find points on the graph...
Q: Find all points on the graph of y = (1/3)X^3 + X^2 - X where the tangent line has slope 1
im not sure how to solve this problem or where to start. can some one help?
Points ... | 4 | [
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0.0625,
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-0.0155029296875,
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-0.11181640625,
0.057... | 31,391 | 31391 | |
On the Convergence of Implicit Picard Iterative Sequences for Strongly Pseudocontractive Mappings in Banach Spaces
Journal of Applied Mathematics
Volume 2013 (2013), Article ID 284937, 5 pages
http://dx.doi.org/10.1155/2013/284937
Research Article
On the Convergence of Implicit Picard Iterative Sequences for Strongly... | 5 | [
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... | 31,392 | 31392 | |
Basics Polyakov’s Quantum Surface Theory on the Formalism of Functional Integrals and Applications
ISRN High Energy Physics
Volume 2012 (2012), Article ID 674985, 25 pages
http://dx.doi.org/10.5402/2012/674985
Research Article
Basics Polyakov’s Quantum Surface Theory on the Formalism of Functional Integrals and Appli... | 4 | [
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Homework Help
Posted by Noelle on Thursday, September 10, 2009 at 9:16pm.
Dorthy is 6 years older than Ricardo. The product of their present age is twice what the product of their ages was 6 years ago. How old is Dorthy?
• math - Reiny, Thursday, September 10, 2009 at 9:30pm
Ricardo's present age --- x
Dor... | 4 | [
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... | 31,394 | 31394 | |
(functions/derivatives) Please >.<
May 20th 2006, 03:31 AM #1
Newbie
Joined
May 2006
Posts
2
(functions/derivatives) Please >.<
Well there is this function
E(x) = w sqrt[x^2 + 10000] + 50 sqrt[5] - x
Question: Suppose that w = 2 use ure graphics calculator to draw the graph of E(x) and find the... | 5 | [
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0.0191650390625,
-0.06... | 31,395 | 31395 | |
trapezoidal section
February 23rd 2010, 02:06 PM #1
Newbie
Joined
Feb 2010
Posts
2
trapezoidal section
Evening all.
Im getting stuck on a question that I just cant figure out.
I'll relay it below and if anyone could offer some help it would be much appreciated.
A cooling tank is to be made... | 5 | [
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0.039306... | 31,396 | 31396 | |
To prove martingale
January 21st 2011, 03:23 AM #1
Newbie
Joined
Dec 2010
Posts
3
To prove martingale
I have problem in the following question
Let $\eta_1,...,\eta_n$ be a sequence of independent identically distributed random variables with $E\eta_i=0$.
Show that the sequence $\xi=(\xi_k)$ with... | 5 | [
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-0.00994873046875... | 31,397 | 31397 | |
Square root solving
If x = 5 + 2√6, Find (x-1)/√x ............... Answer is 2√3............. Please explain the steps involved.
The answer is 2√2. Prove that the square of the expression is 8. To simplify a fraction with the denominator $a+b\sqrt{6}$, multiply the numerator and the denominator by $a-b\sqrt{6}$.
First... | 4 | [
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... | 31,398 | 31398 | |
Need help on a cos/sin explanation problem!
January 20th 2009, 07:12 PM #1
Junior Member
Joined
Sep 2008
Posts
61
Need help on a cos/sin explanation problem!
Explain why the value of [cos $theta$, sin $theta$) *dot* [(cos(90+ $theta$), sin(90+ $theta$)] is independent of $theta$.
--
^^ this is ... | 4 | [
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