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Mathematics 12 Online
OpenStudy (anonymous):

Oh gosh, i'm so confused... Proof for a series??? uhh.. it says "Suppose Sn is defined as 2 + 22 + 23 + . . . + 2n . What is the next step in your proof of Sn = 2(2n - 1), after you verify that Sn is valid for n = 1?"

OpenStudy (kc_kennylau):

Proof by induction

OpenStudy (anonymous):

Oh, nevermind! I found it in my notes! :) sorry.

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