Prove that 3 by2root5 is irrational number

1.	Prove that 3 by2root5 is irrational number
Answer» Let 3/2root5 be rational no. Multiply 3/2root5 by 2/3(product of rational os always rational )therefore root 5 is rational this conteadicts the fact root 5 is irrational. So, our assumption is wrong 3/2root 5 is irrational no.

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