Suppose that the Fourier series expansion for function { 2 cos x, if - Ħ< x < 0 f (x) = if 0 < x < T sin x, in (-7, 7) is in the form of F (x) = (a, cos A,x + b, sin A,2), %3D n=0 What is A, =? What is F (x) =? 2.

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