How to prove 2root 3 is irrational number

1.	How to prove 2root 3 is irrational number
Answer» Let 2√3 be rational2√3 = p/q. ( where p and q are integer and q does not equal to 0)√3 = p/q ×2Irrational = RationalBut the contradicts that irrational does not equal to rationalSo, our supposition was wrongAnd 2√3 is irrational number

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