Question: Given the function: f : [; ] R, x cos (x/2) What is the fourier series of it? Hint: you can use cos(r) cos(y) (cos(a

Given the function:

f : [; ] R, x cos (x/2)

What is the fourier series of it?

Hint: you can use

Given the function:f : [; ] R, x cos (x/2) What is

cos(r) cos(y) (cos(a + y) + cos(x - y))

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