Question: b and f please!!!! Prove each statement using a direct proof or proof by contrapositive. One method may be much easier than the other. (a)

b and f please!!!!

b and f please!!!! Prove each statement using a direct proof or

Prove each statement using a direct proof or proof by contrapositive. One method may be much easier than the other. (a) The product of any integer and an even integer is even. Solution (b) If p>2 and p is a prime number, then p is odd. (c) For every non-zero real number x, if x is irrational, then x1 is also irrational. (d) If x is a real number such that x3+2x

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