Let P(N) Be The Statement That 1^3 + 2^3

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Let P (n) be the statement that 1³ + 2³ + · · · + n³ = (n(n + 1)/2)² for the positive integer n.

a) What is the statement P (1)?

b) Show that P (1) is true, completing the basis step of the proof.

c) What is the inductive hypothesis?

d) What do you need to prove in the inductive step?

e) Complete the inductive step, identifying where you use the inductive hypothesis.

f ) Explain why these steps show that this formula is true whenever n is a positive integer.

Answer: (f) Induction

Explanation

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