Question: Question 4. Prove directly from the definitions that for every integer n,n2n+2 is even. (Hint: Use division into two cases: n is even and n

Question 4. Prove directly from the definitions that for every integer

Question 4. Prove directly from the definitions that for every integer n,n2n+2 is even. (Hint: Use division into two cases: n is even and n is odd.)

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