For the function \(f(x)=\left\lbrace \begin{matrix} -2, & -\pi < x < 0 \\\ 2, & 0 < x < \pi \end{matrix}\right.\) The value of \(a_n\) in the Fourier series expansion of f(x) is

For the function \(f(x)=\left\lbrace \begin{matrix} -2, & -\pi < x <

1.	For the function \(f(x)=\left\lbrace \begin{matrix} -2, & -\pi < x < 0 \\\ 2, & 0 < x < \pi \end{matrix}\right.\) The value of \(a_n\) in the Fourier series expansion of f(x) is
A.	2
B.	4
C.	0
D.	-2
Answer» D. -2

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For the function \(f(x)=\left\lbrace \begin{matrix} -2, & -\pi < x < 0 \\\ 2, & 0 < x < \pi \end{matrix}\right.\) The value of \(a_n\) in the Fourier series expansion of f(x) is

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