We consider the following 2n-periodic function f given by Jо, if —т <х <0, lx, if 0

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.5: Applications
Problem 17EQ
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We consider the following 2T-periodic function f given by
f(x) =
x,
(0, if -r < x < 0,
0 < x < T.
if
1- Determine the Complex Fourier Series associated to the function f.
(ах — 1)
Hint : Use the fact that
-eaa + C, where C is constant.
a?
2- Deduce ao, aɑn and bn for n > 1.
3- Deduce the Real Fourier Series associated to the function f.
4- Use Perseval's equality in order to show that :
1
1
(-1)n+1
57?
%3D
T²n4
2n2
Tn²
48
n=1
n=1
n=1
73
Hint : Use the fact that
3
Transcribed Image Text:We consider the following 2T-periodic function f given by f(x) = x, (0, if -r < x < 0, 0 < x < T. if 1- Determine the Complex Fourier Series associated to the function f. (ах — 1) Hint : Use the fact that -eaa + C, where C is constant. a? 2- Deduce ao, aɑn and bn for n > 1. 3- Deduce the Real Fourier Series associated to the function f. 4- Use Perseval's equality in order to show that : 1 1 (-1)n+1 57? %3D T²n4 2n2 Tn² 48 n=1 n=1 n=1 73 Hint : Use the fact that 3
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