Prove 7√11/3 is irrational.

1.	Prove 7√11/3 is irrational.
Answer» Let 7√11/3 be rational 7√11/3= r 7√11=3r√11=3r/7. .......(1)Here is r is rational 3r is rational 3r/7 is rational Therefore √11 is rational, which is a contradiction .So our supposition was wrong7√11/7 is irrational.

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