step of a proof that P(n) is true for all positive integers n. b) What is the inductive hypothesis of a proof that P(n) is true for all positive integers n? c) What do you need to prove in the inductive step of a proof that P(n) is true for all positive integers n? d) Complete the inductive step of a proof that P(n) is true for all positive integers n, identifying where you use the inductive hypothesis. e) Explain why these steps show that this formula is true whenever n is a positive integer.

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