prove: for all integers m, if m is even, then 3m + 5 is odd

prove: for any integer n, n(n^2 - 1)(n+2) is divisible by 4

prove or give a counterexample: The sum of any two irrational numbers is irrational

prove: for all integers m and n, if m mod 5 = 2 and n mod 5 = 1, then mn mod 5 = 2

prove or show a counter example: for all integers n, n^2 - n + 11 is a prime number

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a For all integers m if m is even then 3m 5 is odd Proof First using direct proof to show that if m is even then 3m5 is odd If m is even then m 2n for ... View the full answer