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Prove that the following premise

4. Prove the following: (a) Prove that n is even if and only if n2 6n+5 is odd. (b) Prove that if 2n2 +3n +1 is even, then n
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π given dte. (n- (n P (n2 6n-s) even even n-1- even ond n-r even sinee, on cod num euen alaan cd numbvs , n is going ที่6ntgiven 2n+3neven let us asome hat n s even let n:2k :2 m+ ttat even & 위use. Hence n odd

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Prove that the following premise 4. Prove the following: (a) Prove that n is even if...
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