Question: 4. Determine whether true or false. Assume that a, b, c, d, and m are integers with m>1 a) If a b (mod m), and

4. Determine whether true or false. Assume that a, b, c, d, and m are integers with m>1 a) If a b (mod m), and ac(mod m), then a (b c) (mod m). b) Ifa b (mod m), then 2a 2b (mod m). c) If a b (mod m), then 2a 2b (mod 2m)

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