Question: Prove the identity (4.2.9) by computing the sum for finite N and then taking the limit N . , = (n-1), k (4.2.9)

Prove the identity (4.2.9) by computing the sum for finite N and then taking the limit N → ∞., = (n-1), k (4.2.9)

, = (n-1), k (4.2.9)

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