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August 30, 2015

Homework Help: pre-calculus

Posted by Jesse on Thursday, June 10, 2010 at 12:33am.

If

(1)(2) + (2)(3) + ... n(n+1) =
n(n+1)(n+2)/3

complete the inductive step of its proof:

1(2) + 2(3) + ... k(k+1) + (k+1)(k+2)

I have no idea what to do.

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