Prove that root 5 is an irrational .Also show that 3 root 5 is an irra

1.	Prove that root 5 is an irrational .Also show that 3 root 5 is an irrational
Answer» 3√5=p/q√5=p/3q:.√5 is irrational :.Contradiction:.3√5 is irrational

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