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But! If than answer isn't sufficient for you... proof by induction.
S_1 = 1 = 1^2 S_n = n^2 S_n+1 = n^2 + (n + 1)^2 - (n + 1 - 1)^2 = (n + 1)^2 - (n^2 - n^2) S_n+1 = (n + 1)^2
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Summing the N series
You are viewing a single comment's thread. Return to all comments →
But! If than answer isn't sufficient for you... proof by induction.