(adsbygoogle = window.adsbygoogle || []).push({}); Prove that ifand [j] are equivalence classes modulo

1. Prove that ifand [j] are equivalence classes modulo n such that=[j], then gcd(i,n)=gcd(j,n)

2. Prove that if gcd(a,b)=1 and if c divides b, then gcd(a,c)=1.

plz help

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# Prove that if and [j] are equivalence classes modulo

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