Determine the Fourier Series of f(x) = x², over the interval - < x < and has period 2 O! f(x) = [ cos x + cos 3x + cos 5x + ] [₁ sina+sin 2x + sin 3x +... ·] 2 1 1 f(x) sina+sin 3x + sin 5x +.. 1 ㅠ 3 O # 1 f(x) -{sina+sin 2x + si ..... 2 3 $ 1 f(2)=-4 cos z - cos 2z+cos 3r - cos 4r +. 1 22 3x 4x J 3 4² = 3π = 4 1 2 2 sin 3x +

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Determine the Fourier Series of
f(x) = x², over the interval - < x < and has period 2
!
f(x) =
3r
[c
cos x + cos 3x + cos 5x + .]
sina+sin 2x + sin 3x +...
2
1
1
f(x)
sin x +
sin 3x +
sin 5x +
1
π
3
5
1
1
-{sin z + sin 2x + sin 3x +
x
...}
2
2
3
$
1
f(2)=-4 [cos 2-2008 22 +00832 - 008 42 +
cos
cos
cos 4x
4]
3
4²
=
#
f(x)
12
=
T
Transcribed Image Text:Determine the Fourier Series of f(x) = x², over the interval - < x < and has period 2 ! f(x) = 3r [c cos x + cos 3x + cos 5x + .] sina+sin 2x + sin 3x +... 2 1 1 f(x) sin x + sin 3x + sin 5x + 1 π 3 5 1 1 -{sin z + sin 2x + sin 3x + x ...} 2 2 3 $ 1 f(2)=-4 [cos 2-2008 22 +00832 - 008 42 + cos cos cos 4x 4] 3 4² = # f(x) 12 = T
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