Question: . (a) Use a proof by cases to show that 10 is not the square of a positive integer b) Prove by contraposition that if

. (a) Use a proof by cases to show that 10

. (a) Use a proof by cases to show that 10 is not the square of a positive integer b) Prove by contraposition that if n is an integer and 3n + 2 is even, then n is even

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