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Linear Algerba in Calculus January 20th 2010, 05:32 PM matt.qmar Linear Algerba in Calculus Hello! We got an assignment in a Calculus class that appears to me to be very linear algebra-ish... I can do some of it by intution but I have two questions, (Q1) To show the line (L1): containing t...
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HELP...Polynomial Rings Problem... May 28th 2008, 08:52 PM #1 HELP...Polynomial Rings Problem... I am reviewing some problems from polynomial rings and hope that someone can tell me if I am on the right track.. PROBLEM: Let $f(x) \in R[x]$. If $f(a) = 0, f'(a)=0$show that $(x-a)^{2}$ divides $f(x)$. Wh...
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Sigma Notation from given set of numbers November 12th 2008, 07:17 AM BCHurricane89 Sigma Notation from given set of numbers How would I go about finding sigma notation for any given set of numbers? I really struggle at finding this. Like is there an easy way to write sigma notation just from looking at a set of...
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A 3D Visualization Method for Bladder Filling Examination Based on EIT Computational and Mathematical Methods in Medicine Volume 2012 (2012), Article ID 528096, 9 pages http://dx.doi.org/10.1155/2012/528096 Research Article A 3D Visualization Method for Bladder Filling Examination Based on EIT State Key Laboratory o...
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[SOLVED] Equation involving arctan January 25th 2008, 05:52 AM #1 [SOLVED] Equation involving arctan Show that $\forall x \in R$, that $arctan(x+1) - arctanx = arctan\frac{1}{x^2 + x + 1}$ tan is a continuous function, so (can anyone tell me why that is important when doing these kinda proofs?) $ta...
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DC3 Pairs and the Set of Discontinuities in Distribution Functions Discrete Dynamics in Nature and Society Volume 2013 (2013), Article ID 673578, 7 pages http://dx.doi.org/10.1155/2013/673578 Research Article DC3 Pairs and the Set of Discontinuities in Distribution Functions ^1Department of Mathematics, Dalian Natio...
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Numerical Solutions of a Class of Nonlinear Volterra Integral Equations Abstract and Applied Analysis Volume 2014 (2014), Article ID 652631, 8 pages http://dx.doi.org/10.1155/2014/652631 Research Article Numerical Solutions of a Class of Nonlinear Volterra Integral Equations Department of Pure and Applied Mathematic...
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values of a polynomial August 12th 2010, 01:17 AM Sam1992 values of a polynomial I have a polynomial with only natural numbers as coefficients. Now I search for all such polynomials with the following additional property: When I plug every natural number in it there is an infinite set of natural numbers not...
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NPV of a Building February 14th 2010, 05:55 PM #1 Newbie Joined Feb 2010 Posts 6 NPV of a Building It costs $800,000, it will produce an inflow after operating costs of $170,000 a year for 10 years. Opportunity costs of capital is 14%..Whats the NPV of factory, and what will the building be worth aft...
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A diagonal basis. November 2nd 2008, 11:35 AM #1 Member Joined Oct 2008 Posts 77 Thanks 1 A diagonal basis. I have the Transformation T s.t: $T(-2, 2, -1)=(-1, -1,-3)$$T(0, 2 ,2)=(4, -2, 2)$ and $T(0, 1,-1) = (0,1, -1)$ Find a basis B of R3 such that M_B(T), the B-matrix of T, is diagonal....
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point on tangent August 6th 2009, 04:08 PM skeske1234 point on tangent Show that the tangent to the curve y=(x^2+x-2)^3+3 at the point (1,3) is also the tangent to the curve at another point. This is what I did so far... I found the derivative of the curve and I got: y'=6x^5+15x^4-16x^3-36x^2+16x+12...
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Parallelism determines the connection Parallelism determines the connection November 2, 2009 Posted by Akhil Mathew in differential geometry, MaBloWriMo. Tags: connections, covariant derivatives, MaBloWriMo, parallelism trackback I’m going to try participating in Charles Siegel’s MaBloWriMo project of writing a short...
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Global Stability of Almost Periodic Solution of a Class of Neutral-Type BAM Neural Networks Abstract and Applied Analysis Volume 2012 (2012), Article ID 482584, 18 pages http://dx.doi.org/10.1155/2012/482584 Research Article Global Stability of Almost Periodic Solution of a Class of Neutral-Type BAM Neural Networks ...
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vector analysis problem Hello, I need help here for my hw. Help will be appreciated! Show that $\vec{v}\cdotabla\vec{v}=\frac{1}{2}abla(\vec{v }\cdot\vec{v})-(\vec{v}\times(abla\times\vec{v}))$ Try using the identity: ${{abla}} <br /> (\vec A\cdot \vec B)<br /> =<br /> (\vec A\cdot {{abla}})\vec B +<br /> (\vec B\cdot...
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Parallel Axis Thereom to find angular velocity Hi, The torque equation you wrote should be: -mgd*sin[itex]\theta[/itex]=Id^2[itex]\theta[/itex]/dt^2 (you forgot the 'd' on the left-side.) For small angles, sin[itex]\theta[/itex][itex]\approx[/itex][itex]\theta[/itex] The torque equation can then be rewritten as: -(...
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partial fractions June 2nd 2010, 08:41 AM #1 Junior Member Joined Mar 2010 Posts 35 partial fractions how do I get the answer shown in the attached problem? when I tried it out, I couldn't get the numerator to 1. Thanks! First, factor your denominator. remember that: $a^2 - b^2 = (a+b...
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Example 8.14: generating standardized regression coefficients November 15, 2010 By Nick Horton Standardized (or beta) coefficients from a linear regression model are the parameter estimates obtained when the predictors and outcomes have been standardized to have variance = 1. Alternatively, the regression model can ...
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[SOLVED] Jointly distribution April 20th 2009, 06:13 AM #1 Member Joined Oct 2008 Posts 206 [SOLVED] Jointly distribution Since $F(a,b)=P[X\leq a, Y\leq b]$ $P[X>a, Y>b]= 1-P[(X > a, Y > b)^c]$ $=1-[P(X\leq a) + P(Y \leq b) - P(X \leq a, Y \leq b)]$ $=1-F_X(a)- F_Y(b) + F(a,b)$ What abo...
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continuous bounded functions March 22nd 2010, 02:17 AM #1 Member Joined Feb 2008 Posts 184 continuous bounded functions Let f:[a,b]---->R be Riemann integrable. Define F:[a,b]---->R by F(x)= $\int_a^x f(t) dt$ iii) Prove that there exists c in[a,b] such that F(c)=sup{F(x): x in [a,b]} By...
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Graph Operations and Neighbor Rupture Degree Journal of Applied Mathematics Volume 2013 (2013), Article ID 836395, 7 pages http://dx.doi.org/10.1155/2013/836395 Research Article Graph Operations and Neighbor Rupture Degree ^1Department of Mathematics, Yasar University, 35100 Izmir, Turkey ^2Department of Mathematics...
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Representation of the Solutions of Linear Discrete Systems with Constant Coefficients and Two Delays Abstract and Applied Analysis Volume 2014 (2014), Article ID 320476, 19 pages http://dx.doi.org/10.1155/2014/320476 Research Article Representation of the Solutions of Linear Discrete Systems with Constant Coefficient...
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Frequency-Dependent Streaming Potentials: A Review International Journal of Geophysics Volume 2012 (2012), Article ID 648781, 11 pages http://dx.doi.org/10.1155/2012/648781 Review Article Frequency-Dependent Streaming Potentials: A Review ^1Institut de Physique du Globe de Strasbourg, UdS-CNRS UMR 7516, Université d...
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Proof involving invertible matrices February 21st 2010, 11:36 AM #1 Proof involving invertible matrices I need to prove that if A is an invertible matrix and B is row equivalent to A, then B is also invertible. I understand the logic of that statement, but I'm not experienced enough to know how to write it i...
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Math Help February 23rd 2009, 05:14 AM #1 Newbie Joined Feb 2009 Posts 2 Help Hi, i would be verry happy if someone could help me with this tasks. Its number 5 i cant figure out. AB=AC, AD=AE, BAD=30 degree , what is the angel x? So plz help. zorry for my bad english... thanks /Jonas ...
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ideals and units April 28th 2010, 04:27 AM #1 Newbie Joined Feb 2010 Posts 9 ideals and units The question is Show that if I in M2(R) contains ( 1 0 ), then I=M2(R) 0 0 I know the fact that if I contains some unit then it would be equal to the ring R. So, ( a b ) (1 0 ) = (a 0 ) ...
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Matrix exponential without series expansion March 28th 2011, 09:31 AM #1 Matrix exponential without series expansion Dear MHF members, my problem is explained below. __________________________________________________ Problem. Compute the matrix exponential of the matrix $A:=<br /> \left(<br /> \b...
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Algebra help June 15th 2009, 02:14 PM #1 Junior Member Joined Oct 2008 From Lewes, England Posts 37 Algebra help Solve the equation: $\frac {7}{(x-4)(x+3)} - \frac {4}{(x+3)(x-1)} = \frac {-3}{2}$ The answers are 2,3 but I can't work out a method. Could really do with some help. Tha...
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Questions about solutions to a (rather well-behaved) nonlinear system of ODEs • /r/math Questions about solutions to a (rather well-behaved) nonlinear system of ODEs (self.math) submitted by cge sorry, this has been archived and can no longer be voted on As part of the homework for a course I'm TAing, we have a ques...
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Subspaces May 31st 2009, 01:34 AM Robb Subspaces Hello MHF, would appreciate some help with the following equestions; Determine which of the following sets are subspaces. Give reasons for your answers. (a) $H=\left\{\left[\begin{array}{cc}s\\2s\\0\end{array}\right]:s\in\mathbb{R},s\geq0 \right\}$ (...
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Modeling Using Differential Equations April 16th 2010, 12:12 AM #1 Newbie Joined Jan 2010 Posts 17 Modeling Using Differential Equations I'm having some trouble with this assignment: Suppose the rate at which the volume in a tank decreases is proportional to the square root of the volume present. Th...
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Positive Solutions of a Two-Point Boundary Value Problem for Singular Fractional Differential Equations in Banach Space Journal of Function Spaces and Applications Volume 2013 (2013), Article ID 585639, 9 pages http://dx.doi.org/10.1155/2013/585639 Research Article Positive Solutions of a Two-Point Boundary Value Pro...
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Incomplete Bivariate Fibonacci and Lucas Discrete Dynamics in Nature and Society Volume 2012 (2012), Article ID 840345, 11 pages http://dx.doi.org/10.1155/2012/840345 Review Article Incomplete Bivariate Fibonacci and Lucas -Polynomials ^1Department of Mathematics, Faculty of Science, Gazi University, Teknikokullar,...
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Analysis of a Singular Convection Diffusion System Arising in Turbulence Modelling International Journal of Partial Differential Equations Volume 2013 (2013), Article ID 940924, 16 pages http://dx.doi.org/10.1155/2013/940924 Research Article Analysis of a Singular Convection Diffusion System Arising in Turbulence Mod...
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delta epsilon proof for limit of multivariable function January 6th 2011, 09:21 AM #1 Member Joined Aug 2008 Posts 249 delta epsilon proof for limit of multivariable function lim x^2 / (x+y) (x,y) ~> (1,2) I find that the limit is just 1/3. but i don't know how to prove this using the delta epsi...
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Formula help. January 4th 2013, 09:08 AM hisajesh Formula help. If two persons A and B start at the same time in opposite directions from two points and arrive at two points in 'a' and 'b' hr, respectively after having met, then , A's speed/B's speed = root b /root a. Can you help how this formula came u...
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Length of Curve with multivariable July 8th 2009, 05:49 PM sleepiiee Length of Curve with multivariable I tried to evaluate the length of this curve but cannot figure out what to do with the derivative of the log(cost). The question is: Find the length of the curve r(t) = <1, log(cost)> t having the dom...
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standard error equation August 12th 2013, 08:57 AM #1 Newbie Joined Dec 2012 From United States Posts 22 standard error equation Hi, Can someone point out a good reference to understand the derivation (or proof) of the standard error of the sampling distribution of the sample mean, i.e. SE = SD/...
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arithmetic sequence August 27th 2007, 08:30 AM anilpadavil arithmetic sequence hello 'find the arithmetic progression of nine continuous numbers where the sum total is 135' kindly get me detailed solution sincerely anil August 27th 2007, 09:25 AM ThePerfectHacker Quote: The first num...
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Optimal Management of Rechargeable Biosensors in Temperature-Sensitive Environments International Journal of Distributed Sensor Networks Volume 2013 (2013), Article ID 635637, 10 pages http://dx.doi.org/10.1155/2013/635637 Research Article Optimal Management of Rechargeable Biosensors in Temperature-Sensitive Environ...
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Numerical Simulation of Solitary Wave Induced Flow Motion around a Permeable Submerged Breakwater Journal of Applied Mathematics Volume 2012 (2012), Article ID 508754, 14 pages http://dx.doi.org/10.1155/2012/508754 Research Article Numerical Simulation of Solitary Wave Induced Flow Motion around a Permeable Submerged...
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Singular_value_decomposition In linear algebra, the singular value decomposition (SVD) is a factorization of a real or complex matrix, with many useful applications in signal processing and statistics. Formally, the singular value decomposition of an m×n real or complex matrix M is a factorization of the form $M...
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Series :) enjoy November 12th 2012, 06:37 AM #1 Newbie Joined Sep 2012 From England Posts 3 Series :) enjoy 1) Water fills a tank at a rate of 150 litres during the first hour, 350 litres during the second, 550 during the third and so on. Find the number of hours necessary to fill a rectangular tank ...
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GRE practice with fractions and exponents I've recently begun studying for the GRE, and this was the problem: (1/2)^a=(1/3)^b These were the answer choices (I'm not sure if they are important for this, so I'm including them just in case): Which is true? a<b<0 b>a>0 b<a<0 b<0<a a<0<b The solution to this problem began...
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The Anisotropic Glassy Properties of Decagonal Quasicrystals Advances in Condensed Matter Physics Volume 2013 (2013), Article ID 419202, 5 pages http://dx.doi.org/10.1155/2013/419202 Research Article The Anisotropic Glassy Properties of Decagonal Quasicrystals ^1Horia Hulubei National Institute for Physics and Nucle...
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Nonlinear-Model-Based Analysis Methods for Time-Course Gene Expression Data The Scientific World Journal Volume 2014 (2014), Article ID 313747, 9 pages http://dx.doi.org/10.1155/2014/313747 Research Article Nonlinear-Model-Based Analysis Methods for Time-Course Gene Expression Data ^1School of Information, Beijing W...
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A Global Optimization Algorithm for Generalized Quadratic Programming Journal of Applied Mathematics Volume 2013 (2013), Article ID 215312, 9 pages http://dx.doi.org/10.1155/2013/215312 Research Article A Global Optimization Algorithm for Generalized Quadratic Programming ^1Department of Mathematics, Henan Institute...
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Semilocal Convergence Analysis for Inexact Newton Method under Weak Condition Abstract and Applied Analysis VolumeΒ 2012Β (2012), Article IDΒ 982925, 13 pages http://dx.doi.org/10.1155/2012/982925 Research Article Semilocal Convergence Analysis for Inexact Newton Method under Weak Condition Department of Mathematics...
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Far-field Diffraction Properties of Annular Walsh Filters Advances in Optical Technologies Volume 2013 (2013), Article ID 360450, 6 pages http://dx.doi.org/10.1155/2013/360450 Research Article Far-field Diffraction Properties of Annular Walsh Filters ^1MCKV Institute of Engineering, 243 G.T. Road, Liluah, Howrah 711...
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A Two-Dimensional Solution of the Advection-Diffusion Equation With Dry Deposition to the Ground September 12, 2008 By Tirabassi, Tiziano Buske, Daniela; Moreira, Davidson M; Vilhena, Marco T ABSTRACT A mathematical scheme is developed to simulate the vertical turbulent dispersion of air pollution that is absorbe...
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Exponential Stabilizability of Switched Systems with Polytopic Uncertainties Journal of Applied Mathematics Volume 2012 (2012), Article ID 853170, 15 pages http://dx.doi.org/10.1155/2012/853170 Research Article Exponential Stabilizability of Switched Systems with Polytopic Uncertainties ^1School of Mathematical Scie...
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Analytical Solutions of the One-Dimensional Heat Equations Arising in Fractal Transient Conduction with Local Fractional Derivative Abstract and Applied Analysis Volume 2013 (2013), Article ID 462535, 5 pages http://dx.doi.org/10.1155/2013/462535 Research Article Analytical Solutions of the One-Dimensional Heat Equat...
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Schwarzschild Orbits in Cartesian coordinates Hi all, I am the PF member whom CarlB mentioned, although I don't think he understood my PMs very well. CarlB As usual, I find at least one mistake in the above equations...wrong sign... putting the equations into my Java differential equation integrator, the behavior i...
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Sove simple equation doubt September 21st 2011, 06:06 AM #1 Sove simple equation doubt I'm solving this: Code: 3 – 7 * (1 - 2x) = 5 – (x + 9) And am trying this way: Code: 3- 7 * (1 - 2x) = 5 - (x + 9) 3 - 7 ..?? ?? = 5 - x - 9) What should be done in the part I put those quest...
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Lines in a plane - Orthogonality; Distances Consider the line d with equation y = m x + q . Let t be a variable real number. Point P(t, m.t+q) is on the line d. P is a variable point of the line. The variable t is called a 'parameter'. Example: P(t, 3t-1 ) is a variable point on the line y = 3x-1. Application: Find ...
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Proving of trigonometric ID July 22nd 2012, 12:57 AM #1 Junior Member Joined Jul 2009 From Singapore Posts 47 Proving of trigonometric ID (solved) Good Day, I'm stuck on proving the following trigonometric identity: (sin 2x + sin 4x + sin 6x) / (cos 2x + cos 4x + cos 6x) = tan 4x I do ...
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Area August 2nd 2006, 10:06 AM bret80 Area Find the area of the region limited by the graphs of y= 2x^2/3 and y= -x^2+15 Nice Graph by Quick, but I would like to know how to calculate the result, thanks. August 2nd 2006, 12:00 PM Quick Quote: Originally Posted by bret80 Find the area o...
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Problem showing a group is nontrivial • /r/math Problem showing a group is nontrivial (self.math) submitted by Cyllindra sorry, this has been archived and can no longer be voted on So... I have a question on a take-home, and here is the problem: Let Z(G) be the center of a nonabelian group G. (a) Show that G/Z(G) ...
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Lie Groups Analysis and Contact Transformations for Ito System Abstract and Applied Analysis Volume 2012 (2012), Article ID 342680, 12 pages http://dx.doi.org/10.1155/2012/342680 Research Article Lie Groups Analysis and Contact Transformations for Ito System Department of Mathematics, Faculty of Science, King Abdula...
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Bifurcation and Chaos in a Price Game of Irrigation Water in a Coastal Irrigation District Discrete Dynamics in Nature and Society Volume 2013 (2013), Article ID 408904, 10 pages http://dx.doi.org/10.1155/2013/408904 Research Article Bifurcation and Chaos in a Price Game of Irrigation Water in a Coastal Irrigation Di...
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How do I differentiate y=(4x^2 - e^2x)sin3x ? October 2nd 2011, 08:26 AM #1 Newbie Joined Aug 2011 Posts 14 How do I differentiate y=(4x^2 - e^2x)sin3x ? Hi, I have a seemingly straight forward question but I seem to get lost half way through! how do I differentiate y=(4x^2 - e^2x)sin3x ? So far, I ...
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S_4=1^4+2^4+...+n^4 (linear algebra method) August 11th 2011, 01:26 AM #1 S_4=1^4+2^4+...+n^4 (linear algebra method) This problem provides a linear algebra method for computing sums of the form $S_k=1^k+2^k+3^4+\ldots+n^k$ with $k$ positive integer. 1. Let $\mathbb{R}_5[x]$ the real vector space of all poly...
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Expectation of X October 4th 2009, 09:35 AM #1 Junior Member Joined Aug 2008 Posts 33 Expectation of X I am working on this problem and I don't really know what to do. I am really struggling in this class. A bag contains n balls numbered 1, 2, 3, ....n. Two of them are taken out of the bag (without ...
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Some New Traveling Wave Solutions of the Nonlinear Reaction Diffusion Equation by Using the Improved ( Mathematical Problems in Engineering Volume 2012 (2012), Article ID 871724, 17 pages http://dx.doi.org/10.1155/2012/871724 Research Article Some New Traveling Wave Solutions of the Nonlinear Reaction Diffusion Equat...
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Square matrix and induced norm April 10th 2010, 10:44 AM #1 Member Joined Feb 2009 Posts 98 Square matrix and induced norm Let T be any square matrix and let $\left\| \cdot \right\|$ denote any induced norm. Prove that $lim_{n \rightarrow _{\infty}} \left\| T^{n} \right\| ^{1/n}$ exists and equals ...
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Moment Generating Function of a gamma distribution. February 2nd 2010, 07:50 AM Yardee Moment Generating Function of a gamma distribution. Hello Math Forums, this is my first time posting here so I apologize for not knowing all the functions of the board, but I just have a stats question that I am a bit lost on....
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cardinality April 15th 2008, 07:00 PM sfitz cardinality I have two problems: 1. Let A, B, and C be sets. Suppose that card A < card B and card B < card C. Prove that card A < card C. Can I do this by contradiction?: Assume card A < card B, card B < card C, and by contradiction, that card A > C. ...
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converge/diverge sum n=1 oo (arctan(n))^2 / 1+n^2 how do i solve it using integral test? Less formally than Jhevon, as $\arctan(n)$ by definition is giving a value in the range $(-\pi/2, \pi/2)$$\arctan(n)$ is bounded (in fact not only is it bounded but as $n \to \infty \arctan(n) \to \ pi/2$). Also for large $n$, $1/...
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Rigid Body Dynamics Two-Dimensional Rigid Body Dynamics For two-dimensional rigid body dynamics problems, the body experiences motion in one plane, due to forces acting in that plane. A general rigid body subjected to arbitrary forces in two dimensions is shown below. The full set of scalar equations describing the...
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[ -0.003997802734375, -0.0908203125, -0.000263214111328125, -0.0306396484375, -0.0244140625, 0.0238037109375, 0.0308837890625, 0.059326171875, 0.04248046875, 0.0262451171875, 0.107421875, 0.056396484375, 0.00726318359375, -0.026123046875, -0.033203125, 0.033935546875, -0.027587890625, ...
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invertible matrix September 20th 2012, 06:51 AM jojo7777777 invertible matrix I have some difficulty proving the bolded part of the exercise: If A is an nxn matrix establish the identity I[n]-A^k+1=(I[n]-A)(I[n]+A+A^2+...+A^k). Deduce that if some power of A is the zero matrix then I[n]-A is inverti...
5
[ -0.057373046875, 0.08203125, -0.0203857421875, 0.001617431640625, -0.0216064453125, -0.10107421875, 0.06591796875, -0.052490234375, 0.0201416015625, 0.0025787353515625, -0.00579833984375, 0.005859375, 0.03173828125, -0.0164794921875, -0.11376953125, 0.047119140625, -0.0234375, -0.0...
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Cardinal numbers proof January 22nd 2008, 09:23 AM tashe Cardinal numbers proof How can I prove these lines: Let N be a set of natural numbers and |N|=Xo. How can i prove that Xo + k = Xo or Xo * Xo = Xo Help anyone? January 22nd 2008, 09:49 AM Jhevon Quote: i assume $k$ is...
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compound interest April 26th 2009, 08:17 PM #1 Newbie Joined Apr 2009 Posts 10 ok i have two questions that i need help on. ugh word problems... 1. a car tire has a small leak, and the tire pressure in pounds per square inch after t minutes is given by P(t) = 32e (-0.2t) After how many minutes w...
4
[ -0.005645751953125, 0.08203125, -0.01019287109375, 0.017578125, -0.0235595703125, -0.042724609375, 0.06787109375, 0.07568359375, 0.032470703125, 0.08642578125, 0.06298828125, -0.05224609375, 0.0166015625, 0.099609375, -0.005096435546875, -0.0084228515625, -0.068359375, -0.048828125...
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Markov Models for Image Labeling Mathematical Problems in Engineering Volume 2012 (2012), Article ID 814356, 18 pages http://dx.doi.org/10.1155/2012/814356 Review Article Markov Models for Image Labeling ^1College of Computer Science, Zhejiang University of Technology, Hangzhou 310023, China ^2Department of Mathemat...
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the encyclopedic entry of matrix math In linear algebra , the kernel or null space (also nullspace ) of a matrix A is the set of all vectors x for which Ax = 0 . The null space of a matrix with n columns is a linear subspace of n -dimensional Euclidean space . The nullspace (or kernel) of the...
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number theory September 22nd 2012, 09:12 AM #1 Senior Member Joined Sep 2012 From Sweden Posts 250 Thanks 6 number theory i prob post on wrong sector but idk where i should post it, sorry the quest is : Which (positive) residual obtained when 11^30+5^31-6 divided by 24? i have got th...
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Application of Simulation Methods for Evaluating the Sea Waterways Traffic Organisation ISRN Applied Mathematics Volume 2013 (2013), Article ID 715142, 8 pages http://dx.doi.org/10.1155/2013/715142 Research Article Application of Simulation Methods for Evaluating the Sea Waterways Traffic Organisation Mathematics De...
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Fractal Theory and Contact Dynamics Modeling Vibration Characteristics of Damping Blade Advances in Mathematical Physics Volume 2014 (2014), Article ID 549430, 7 pages http://dx.doi.org/10.1155/2014/549430 Research Article Fractal Theory and Contact Dynamics Modeling Vibration Characteristics of Damping Blade School...
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Euler problems/21 to 30 From HaskellWiki < Euler problems (Difference between revisions) Lisp (Talk | contribs) (→‎Problem 24: Added another method for Problem 24) ← Older edit ...
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Hi I need help on inverse functions and other things October 13th 2007, 02:48 PM #1 Newbie Joined Oct 2007 Posts 2 Hi I need help on inverse functions and other things Hi my name is Cindy and I am new here and I need help on my math homework. The first one says which of the following fuctions f(x) =...
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Optimal Control of Pseudoparabolic Variational Inequalities Involving State Constraint Abstract and Applied Analysis Volume 2014 (2014), Article ID 641736, 9 pages http://dx.doi.org/10.1155/2014/641736 Research Article Optimal Control of Pseudoparabolic Variational Inequalities Involving State Constraint ^1School of...
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Precise Analytical Computation of Frozen-Eccentricity, Low Earth Orbits in a Tesseral Potential Mathematical Problems in Engineering Volume 2013 (2013), Article ID 191384, 13 pages http://dx.doi.org/10.1155/2013/191384 Research Article Precise Analytical Computation of Frozen-Eccentricity, Low Earth Orbits in a Tesse...
4
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Some Fixed and Periodic Points in Abstract Metric Spaces Abstract and Applied Analysis Volume 2012 (2012), Article ID 908423, 15 pages http://dx.doi.org/10.1155/2012/908423 Research Article Some Fixed and Periodic Points in Abstract Metric Spaces ^1School of Mathematical Sciences, Faculty of Science and Technology, ...
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Another nasty integral December 12th 2006, 10:25 AM topsquark Another nasty integral I've got another one for you. I ran across this theorem in my Field Theory text. The theorem is this: Given a sufficiently smooth function f(x) we have that: $\lim_{x \to \infty}f(x) + \lim_{x \to - \infty}f(x) = \...
4
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Union of distinct subset in a finite group G. November 30th 2012, 05:39 AM #1 Newbie Union of distinct subset in a finite group G. Last edited by john27; November 30th 2012 at 05:59 AM. Re: Union of distinct subset in a finite group G. By AB you mean x\in G s.t x=a.b where a\in A, b\in B and the operation ...
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Algebraic Topology - Fundamental Group and Liftings - Munkres CH 9 June 22nd 2012, 07:02 PM Bernhard Algebraic Topology - Fundamental Group and Liftings - Munkres CH 9 In Section 54 of his book "Topology" on the Fundamental Group of the Circle, Munkres presents the following Lemma (Lemma 54.1 - see attachment) ...
5
[ -0.06640625, 0.033447265625, 0.037841796875, 0.0025482177734375, 0.041748046875, 0.1123046875, 0.11767578125, 0.033935546875, -0.0272216796875, -0.060546875, 0.0107421875, -0.0118408203125, -0.01531982421875, -0.05078125, 0.0152587890625, 0.0595703125, -0.05908203125, -0.0634765625...
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Current Controlled Differential Difference Current Conveyor Transconductance Amplifier and Its Application as Wave Active Filter ISRN Electronics Volume 2013 (2013), Article ID 968749, 11 pages http://dx.doi.org/10.1155/2013/968749 Research Article Current Controlled Differential Difference Current Conveyor Transcond...
4
[ -0.07275390625, 0.0196533203125, 0.006805419921875, 0.00762939453125, -0.03173828125, 0.012939453125, 0.0029296875, 0.01220703125, -0.033203125, 0.0260009765625, 0.0390625, -0.041748046875, -0.025634765625, -0.02294921875, -0.0016326904296875, 0.0947265625, 0.0517578125, 0.01232910...
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On Fixed Point Theory of Monotone Mappings with Respect to a Partial Order Introduced by a Vector Functional in Cone Metric Spaces Abstract and Applied Analysis Volume 2013 (2013), Article ID 349305, 6 pages http://dx.doi.org/10.1155/2013/349305 Research Article On Fixed Point Theory of Monotone Mappings with Respect...
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Factoring by Grouping November 17th 2006, 05:36 PM #1 mmsan Guest Factoring by Grouping note: x^2 means x ( or whatever variable) to the power of 2 p^2-q^2+r^2-2pr factor by grouping ( or any other method) i've tried to factor it into this format: (x-y+z)(x-y-z), but i can't seem to do it. the answer...
4
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includes circle,chord and tangent concepts September 28th 2010, 08:29 AM #1 includes circle,chord and tangent concepts prove that chord of contact of the pair of tangents to the circle $x^2 + y^2 = 1$ drawn from any point on the line $2x + y = 4$ passes through a fixed point.also,find the co-ordinates of that ...
5
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Separable Equations March 6th 2011, 02:59 PM Naples Separable Equations 1. Solve $dP/dt = P(a-bP)$ where a and b are constants $dP/[P(a-bP)] = dt$ rewrote the integral as $-dP/[P(bP-a)] = dt$ then used this list of integrals [HTML]http://en.wikipedia.org/wiki/List_of_integrals_of_rational_fun...
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problem solving - square roots December 4th 2009, 01:38 AM #1 Member Joined Jul 2009 Posts 168 problem solving - square roots This problem was in my calculus exercise, yet I don't understand why: Solve the equation : $x=\sqrt{5+\sqrt{5+\sqrt{5+x}}}$ (Show there are not other solutions to the...
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-Best Simultaneous Approximation in Topological Vector Spaces Abstract and Applied Analysis Volume 2013 (2013), Article ID 978738, 7 pages http://dx.doi.org/10.1155/2013/978738 Research Article New Generalization of -Best Simultaneous Approximation in Topological Vector Spaces Department of Mathematics and Statistic...
5
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The Mann-Type Extragradient Iterative Algorithms with Regularization for Solving Variational Inequality Problems, Split Feasibility, and Fixed Point Problems Abstract and Applied Analysis Volume 2013 (2013), Article ID 378750, 19 pages http://dx.doi.org/10.1155/2013/378750 Research Article The Mann-Type Extragradient...
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What is zero content? I know the definition, But I'm looking for an explanation.. anyone? I have: for every epsilon>0 there is a finite collection of intervals I1...IL st: A) Z⊂U IL,and B) The sum of the lengths of the I l's is less than epsilon. But how can the sum of the intervals be less than epsilon, does it just ...
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Factorials and Permutations Let's say we have two books: The Odyssey and The Iliad. We should probably have more books, but if we're only going to have two, these are a good two to have. There are two possible ways to order these books on a shelf. We can have either of these orders: The Odyssey, The Iliad The Iliad, T...
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Convexity Invariance of Fuzzy Sets under the Extension Principles Journal of Function Spaces and Applications Volume 2012 (2012), Article ID 849104, 13 pages http://dx.doi.org/10.1155/2012/849104 Research Article Convexity Invariance of Fuzzy Sets under the Extension Principles ^1College of Mathematics and Physics, ...
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[SOLVED] Fraction using exponents and parenthesis April 12th 2010, 10:22 AM #1 Newbie Joined Apr 2010 Posts 12 Hi everyone first time here, got 2 questions, I'm pretty sure I got the first one rite but would like a second opinion and would like to no how to solve the second one.... First one is: ...
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calculus of fractions Context Category theory Concepts Universal constructions Theorems Extensions Applications Homotopy theory Background Variations Definitions Paths and cylinders Homotopy groups Theorems Contents Idea A class $W$ of weak equivalences in a category $C$ is said to admit a calculus of f...
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Analytical Expressions of the Efficiency of Standard and High Contact Ratio Involute Spur Gears Mathematical Problems in Engineering Volume 2013 (2013), Article ID 142849, 14 pages http://dx.doi.org/10.1155/2013/142849 Research Article Analytical Expressions of the Efficiency of Standard and High Contact Ratio Involu...
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Line Integrals Across Line Segment December 3rd 2008, 11:56 AM #1 Junior Member Joined Jun 2008 Posts 46 Line Integrals Across Line Segment Hello all, I have a problem where I need to parametrize a line segment in order to evaluate a line integral, but I don't know how to do that. The problem is as ...
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Chapter 5, Dose-Response, Linear Regression, and Some Other Key Concepts in Our Analyses Part 1. Radiation-Induced Cancer: The "Build-Up" Phase Part 2. Equilibrium Phase: Flat Rates of Radiation-Induced Cancer Part 3. The "Build-Down" Phase: An Exceedingly Gradual Phenomenon Part 4. Is There Really Any...
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