Question: 9. Let m,n are integers. Use a proof by contraposition to prove that if mn is even, then m is even or n is even.

9. Let m,n are integers. Use a proof by contraposition to

9. Let m,n are integers. Use a proof by contraposition to prove that if mn is even, then m is even or n is even. 10. Let n be an integer. Use a proof by contradiction to prove that if 3n+2 is even, then n is even

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