Question: 4) 13 points Using contraposition, prove that if 3n+4 is even, then n is even, where n is an integer. 5) [4 points) Prove the

4) 13 points Using contraposition, prove that if 3n+4 is even, then n is even, where n is an integer. 5) [4 points) Prove the bi-conditional: n is odd - 5n+ 2 is odd where n is integer

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