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Questions about methods for estimating the increase in runtime of an algorithm as the input size increases.

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Help me solve recursion equation by using recursion tree method

Hello I am trying to solve this recurrence equation using the recursion tree method: T (n) = T (n −1) + n^2 In particular, what is big-O of T (n)? Here is what I have done so far: I am not sure if I …
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