Given Show that the Fourier series for f(x) is π² f(x)= +2 6 (-1) n² n=1 -^≤x≤0 0≤x≤T 2 Σ(-1*¹. (−1)n+1 + ren (–1)" – 1}}sinnx πης n=1 f(x) = {0, (x², cos nx +

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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4. Given
f(x) = =
Show that the Fourier series for f(x) is
π²
f(x)=
) = 1/² + ² [²
2 [(-1)₂
n²
n=1
{x²,
-π < x < 0
0≤x≤π
2
Σ{-1}+1+7
+³3 ((−1)ª − 1]} sin
[(-1)"
sin nx
лn³
n=1
·cos nx +
Transcribed Image Text:4. Given f(x) = = Show that the Fourier series for f(x) is π² f(x)= ) = 1/² + ² [² 2 [(-1)₂ n² n=1 {x², -π < x < 0 0≤x≤π 2 Σ{-1}+1+7 +³3 ((−1)ª − 1]} sin [(-1)" sin nx лn³ n=1 ·cos nx +
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