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Question: 8 question 2 an integer n is even if 2...

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8 Question 2. An integer n is even if 2 n, and odd otherwise. 12) n is even iff n 2m for some integer m, and n is odd iff n 2k+1 for some integer k [ (b) n is odd iff n +1 is ever 2 e) nn +1) is even 3 (d) Ifn is odd, then n2 -1 is divisible by Prove:
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