Question: 3. [4 points Consider the recursive sequence: a1 = 1, a2 = 3, and an = 30, 1 - 20, 2 for all n 2

3. [4 points Consider the recursive sequence: a1 = 1, a2 = 3, and an = 30, 1 - 20, 2 for all n 2 3. Use induction to prove that an = 2" - 1 for all n 2 1

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