2. Consider the function f(x) = 1 -x on the interval [0, 1]. a) In two separate graphs, sketch i) the odd extension fodd on the interval [−1, 1], ii) the Fourier series associated with fodd on the interval [-3,3].

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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2. Consider the function f(x) = 1 x on the interval [0, 1].
a) In two separate graphs, sketch
i) the odd extension fodd on the interval [-1,1],
ii) the Fourier series associated with fodd on the interval [-3,3].
b) Carefully state Fourier's theorem, including the definition of the Fourier series and the Fourier
coefficients.
c) Compute the Fourier coefficients of fodd and write down the Fourier series. Give full justification
for your answer.
d) By evaluating the Fourier series for an appropriate value of x, show that
1
2 2 2
2
3π
5TT
7π
=
2|7
+
+
Transcribed Image Text:2. Consider the function f(x) = 1 x on the interval [0, 1]. a) In two separate graphs, sketch i) the odd extension fodd on the interval [-1,1], ii) the Fourier series associated with fodd on the interval [-3,3]. b) Carefully state Fourier's theorem, including the definition of the Fourier series and the Fourier coefficients. c) Compute the Fourier coefficients of fodd and write down the Fourier series. Give full justification for your answer. d) By evaluating the Fourier series for an appropriate value of x, show that 1 2 2 2 2 3π 5TT 7π = 2|7 + +
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