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Use Mathematical Induction to Prove the Following for Every Positive nn

Question 30

Essay

Use mathematical induction to prove the following for every positive integer nn .
1+3+9+27+…+3n−1=3n−121 + 3 + 9 + 27 + \ldots + 3 ^ { n - 1 } = \frac { 3 ^ { n } - 1 } { 2 }

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