Consider the Fourier expansion 2 k = ∞ f(x) = Σck · sin(ka), k=1 where Ck (-1) 2k+1. Describe the periodic function f(x). Verify that the first Fourier coefficient satisfies C1 = π \^ π xsin (x) dx.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.2: Exponential Functions
Problem 31E
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Consider the Fourier expansion
= (−1)²k+1 .
2
k
∞
f(x) = [ck · sin(kx),
k=1
where Ck =
Describe the periodic function f(x).
Verify that the first Fourier coefficient satisfies
C1 =
CTT
-π
xsin (x) dx.
Transcribed Image Text:Consider the Fourier expansion = (−1)²k+1 . 2 k ∞ f(x) = [ck · sin(kx), k=1 where Ck = Describe the periodic function f(x). Verify that the first Fourier coefficient satisfies C1 = CTT -π xsin (x) dx.
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