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Prove by cases: 1) Statement: If nZ, then n2+3n+5 is an odd integer. Proof: 2) Statement: If nZ, then n3n is even. Prove
Prove by cases: 1) Statement: If nZ, then n2+3n+5 is an odd integer. Proof: 2) Statement: If nZ, then n3n is even. Prove
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