Use mathematical induction to prove the following.6n > n
What will be an ideal response?
Answers may vary. One possibility:
Sn: 6n > n
S1: 61 > 1
Sk: 6k > k
Sk+1: 6k+1 > k + 1
1. Basis step: Since 61 > 1, S1 is true.
2. Induction step: Let k be any natural number. Assume Sk. Deduce Sk+1.
6k > k
6k ? 6 > k ? 6 Multiplying by 6, 6 > 0
6k+1 > k(1 + 5)
6k+1 > k + 5k
5k ? 1 5 ? 1 and k ? 1
6k+1 > k + 1
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