Question

5.
Let a and b be integers. By the law of contrapositive prove that if ab is even then either a is
even or b is even :
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Answer 1

Answer:

x.cncn nnn xxxxnxndnxnnxxnxnxnxnxnxbxxxnxnxnxznznznznznzzzxxnxnxnxxnxnxnxnxxnxnxnxnxnxnxxn

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