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Show that for all positive integers n ∑(from i=0 to n) 2^i=2^(n+1)−1 please use induction only

Show that for all positive integers n

∑(from i=0 to n) 2^i=2^(n+1)−1

please use induction only

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Answer #1

sorry for inconvenience i didn't read the induction part.

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