Let f(x) = x.
a) Expand f(x) in a Fourier cosine series for 0 ≤ x ≤ π.
b) Expand f{x) in a Fourier sine series for 0 ≤ x < π.
c) Expand fix) in a Fourier cosine series for 0 ≤ x ≤ 1.
d) Expand fix) in a Fourier sine series for 0 ≤ x < 1.
Let f(x) = x.a) Expand f(x) in a Fourier cosine series for 0 ≤ x ≤...
Let f(x) = 1, 0 〈 x 〈 π. Find the Fourier cosine series with period 2T. Let f(x) = 1, 0 〈 x 〈 π. Find the Fourier sine series with period 2T.
Problem 1. Expand f(x) em 1. Expand fo) (1.0 ,-π < x < 0 0, 0<X<T in a sine, cosine Fourier series. write out a few 0, 0<x<π in sine,cosine Fourier series Write out aferw terms of the series
2, (a) Expand f(x) = 8, 0 < x < 3, into a cosine series of period 6. (b) Expand f(x) 8, 0<x3, into a sine series of period 6. (c) For each series, determine the value to which the series converges to when x (d) Graph the sine series in part (b) for 3 periods, over the interval [-9, 9] 42. 2, (a) Expand f(x) = 8, 0
Expand the given function in an appropriate cosine or sine series f(x) = 1x1, -π <x<π F(x) = sin nx cos nx + n=1L Suhmit Answor Savo Drogroso
3. Let f(x) = 1 – X, [0, 1] (a) Find the Fourier sine series of f. (b) Find the Fourier cosine series of f. (Trench: Sec 11.3, 12) (Trench: Sec 11.3, 2)
Fourier Series Expand each function into its cosine series and sine series for the given period P = 2π f(x) = cos x
= Problem #2: The function f(x) sin(4x) on [0:1] is expanded in a Fourier series of period Which of the following statement is true about the Fourier series of f? (A) The Fourier series of f has only cosine terms. (B) The Fourier series of f has neither sine nor cosine terms. (C) The Fourier series of f has both sine and cosine terms. (D) The Fourier series of f has only sine terms.
4. Let f(x) = 6-2x, 0<x 2 (a) Expand f(x) into a periodic function of period 2, ie. construct the function F(x), such that F(x)-f (x), 0xS 2, and Fx) F(x+2) for all real numbers x. (This process is called the "full-range expansion" of f(x) into a Fourier series.) Find the Fourier series of Fr). Then sketch 3 periods of Fx). (b) Expand fx) into a cosine series of period 4. Find the Fourier series and sketch 3 periods (c)...
1. True or false: (a) The constant term of the Fourier series representing f(x) 2,-2<2,f(x +4) f(z), is o 4 2 3 (b) The Fourier series (of period 2T) representing f(x)-3 - 7sin2(z) is a Fourier sine series (c) The Fourier series of f(x) = 3x2-4 cos22, -π < x < π, f(x + 2π) = f(x) is a cosine series (d) Every Fourier sine series converges to 0 at x = 0 (e) Every Fourier sine series has 0...
Question 4. Calculate the Fourier sine series and the Fourier cosine series of the function f(x) = sin(x) on the interval [0, 1]. Hint: For the cosine series, it is easiest to use the complex exponential version of Fourier series. Question 5. Solve the following boundary value problem: Ut – 3Uzx = 0, u(0,t) = u(2,t) = 0, u(x,0) = –2? + 22 Question 6. Solve the following boundary value problem: Ut – Uxx = 0, Uz(-7,t) = uz (77,t)...