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  3. prove that for an integer k, k2 + 4k + 6 is odd if

Prove that for an integer k, k2 + 4k + 6 is odd if and only...

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Advance Math

Prove that for an integer k, k2 + 4k + 6 is odd ifand only if k is odd.

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4.4 Ratings (630 Votes)
To proveFor an integer k1is odd if and only if k is oddProof by ContradictionStep 1By ContradictionAssume k is evenStep 2Then by theorem as the    See Answer
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