Prove that root2 is an irrational number

1.	Prove that root2 is an irrational number
Answer» Let root2 is rational number Then we can write it in p/q form So, Root2=p/q root2×q=p q=p/root2 And we know that if Any no. Divided by root is irrrational So,our assumption contradicts Therefore, root2 is irrational ~Hence proved~

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