7. Let a, b E Z. Prove that if a = b (mod 2), then a² = 62 (mod 4).

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7. Let a, b E Z. Prove that if a = b (mod 2), then a² = 62 (mod 4).

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7 Let A B E Z Prove That If A B Mod 2 Then A 62 Mod 4 1
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7. Let a, b E Z. Prove that if a = b (mod 2), then a² = 62 (mod 4).
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