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#1 Re: Help Me ! » induction » 2009-10-28 01:43:41

ahed

thanks

#2 Re: Help Me ! » induction » 2009-10-27 08:38:01

ahed

Suppose f : Z+  Z+ is defined so that f(1) = 2, and f(n+1) = f(n) + 2(n + 1). Prove by induction that f(n) = n(n + 1).

whats the answer of this please

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