Problem #3: Suppose that f(x) is the sum of the Fourier series f(x) = 3 + 5+6n sin(nx) 1+1 = n=1 + sin x + sin(2x) + 23 sin(3x) + ..., Compute the integral 1 f(x)(1 + sin(2x)) dx -π (A) 32 (B) 29 (C) 6x (D) 27 (E) 34

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.4: Values Of The Trigonometric Functions
Problem 23E
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Problem #3: Suppose that f(x) is the sum of the Fourier series
f(x) =
+
00
Σ
n=1
5+6n
1+n
sin(nx)
=
+sin
x+
17 sin(2x) +
23
sin(3x)+
− < x < π.
Compute the integral
=
π
f(x)(1 + sin(2x)) dx
(A) 32 (B) 29 (C) 6л (D) 27 (E) 34
Transcribed Image Text:Problem #3: Suppose that f(x) is the sum of the Fourier series f(x) = + 00 Σ n=1 5+6n 1+n sin(nx) = +sin x+ 17 sin(2x) + 23 sin(3x)+ − < x < π. Compute the integral = π f(x)(1 + sin(2x)) dx (A) 32 (B) 29 (C) 6л (D) 27 (E) 34
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