Let a, b, c Z+ with c = gcd(a, b). Prove that (ab)(c) = (a)(b)c.
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ϕ(ab)ϕ(c) = ϕ(a)ϕ(b)c.
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Related Book For
Discrete and Combinatorial Mathematics An Applied Introduction
ISBN: 978-0201726343
5th edition
Authors: Ralph P. Grimaldi
Question Posted:
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