Part (c) please 6. (continued) Recall that f: [-7,7] → R is the function ſo if...
Consider the function y = x2 for x E (-7,7) . a) Show that the Fourier series of this function is n cos(nz) . b) (i) Sketch the first three partial sums on (-π, π) (ii) Sketch the function to which the series converges to on R . c) Use your Fourier series to prove that 2and1)"+1T2 12 2 2 Tu . d) Find the complex form of the Fourier series of r2. . e) Use Parseval's theorem to prove...
3. Consider the function defined by f(x) = 1, 0 < r< a, | 0, a< x < T, where 0a < T (a) Sketch the odd and even periodic extension of f (x) on the interval -3n < x < 3« for aT/2 (b) Find the half-range Fourier sine series expansion of f(x) for arbitrary a. (e) To what value does the half-range Fourier sine series expansion converge at r a? [8 marks 3. Consider the function defined by...
Let f be the function of period 6 such that F(x) = ch that Fx10-35x< ch that X, OSX<3 (a) Sketch the graph of F on the interval (-6, 6]. At which points in this interval is f discontinuous? (b) Find the Fourier series of f on the interval (-3,3]. What is the value of the constant term in the series expansion? What is the value of the coefficient a? What is the value of the coefficient bz? (c) To...
1. Consider the function defined by 1- x2, 0< |x| < 1, f(x) 0, and f(r) f(x+4) (a) Sketch the graph of f(x) on the interval -6, 6] (b) Find the Fourier series representation of f(x). You must show how to evaluate any integrals that are needed 2. Consider the function 0 T/2, T/2, T/2 < T. f(x)= (a) Sketch the odd and even periodic extension of f(x) for -3r < x < 3m. (b) Find the Fourier cosine series...
n=7 Question 3 3 pts Find the Fourier Sine series for the function defined by f(x) = { 0, 2n, 0 <*n n<<2n and write down, 1. The period T and the frequency wo of the Fourier Sine series 2. The coefficients for r = 1,2,3,...
1. Let f(x) be the 2T-periodic function which is defined by f(xcos(x/4) for -<< (a) Draw the graph of y = f(x) over the interval-3r < x < 3π. Is f continuous on R? (b) Find the trigonometric Fourier Series (with L = π) for f(x). Does the series converge absolutely or conditionally? Does it converge uniformly? Justify your answer. (c) Use your result to obtain explicit values for these three series: and , and 162 16k2-1" 16k2 1)2 に1...
(4) Consider the function f(0) = 10 € C(T). (a) Show that the Fourier coefficients of f are if n = 0, f(n) (-1)" - 1 if n +0. l n2 (b) Justify why the Fourier series of f converges to f uniformly on T. (c) Taking 0 = 0 in the Fourier series expansion of f, conclude that HINT: First prove that n even
find the Fourier cosine and sine series for the function f defined on an interval 0<t<L and sketch the graphs of the two extensions of f to which these two series converge: f(t)=1-t, 0<t<1
Let f(x) be the 27-periodic function which is defined by f(x)-cos(x/4) for-π < x < 1. π. (a) Draw the graph of y f(x) over the interval-3π < x < 3π. Is f continuous on R? (b) Find the trigonometric Fourier Series (with L π) for f(x). Does the series converge absolutely or conditionally? Does it converge uniformly? Justify your answer. (c) Use your result to obtain explicit values for these three series: 16k2 1 16k2 1 (16k2 1)2 に1...
(a) Determine algebraically whether the functions below are even, odd or neither. i. r+6 f(x)=- r-r? (2 marks) ii. f(x) = 2x sinx (2 marks) (b) A periodic function is defined by: f(x) = 4-x?, -25x52, f(x+4)= f(x) i. Sketch the graph of the function over -10<x<10. (4 marks) ii. Based on result in (i), identify whether the function is even or odd. Give your reason. (2 marks) ii. Calculate the Fourier series expansion of f(x). (12 marks) (c) An...