Find at least three nonzero terms [including a0, at least two cosine terms (if they are not all zero) and at least two sine terms (if they are not all zero)] of the Fourier series for the given function.f(x) = 
A. f(x) = 1 - 
+ 
(sin x - sin 2x + . . .)
B. f(x) = 1 - 
+ 
(sin x - sin 2x + . . .)
C. f(x) = 2 - 
+ 
(sin x - sin 2x + . . .)
D. f(x) = 2 - 
+ 
(sin x - sin 2x + . . .)
Answer: B
Mathematics
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