Question: 1. Show k= i Ck sin(2????kf ) = 0. Hints: (i) recall Ck = Ck and (ii) what is the value of sin (b)

1. Show Σ∞k=−∞ i ⋅ Ck sin(2????kf ) = 0. Hints: (i) recall Ck = C−k and (ii) what is the value of sin

(b) + sin(−b)?

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