Show that i) ii) If n is even, then n + 4 is even using direct...

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Show that i) ii) If n is even, then n + 4 is even using direct proof, a proof by contrapositive and a proof by contradiction. If n +5 is odd then n is even using a proof a contrapositive and a proof by contradiction. Show that i) ii) If n is even, then n + 4 is even using direct proof, a proof by contrapositive and a proof by contradiction. If n +5 is odd then n is even using a proof a contrapositive and a proof by contradiction.

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a Direct Proof Let n 2k n 4 2k 4 2k 2 mod 2 2k2 mod 2 0 n4 Hence if n is even then n 4 is even Prove... View the full answer