2. Prove that for all positive integers n, 2 2 1² + 2² -3² a. 2 + + + n = Show it is true for n = 1. Show your work here: Show your work here: … b. Assume it is true for n=k. n(n+1)(2n+1) 6 Show your work here: C. Prove it is true for k + 1.

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