Prove that `sqrtn` is not a rational number if n is not a perfect square.

Prove that sqrt(n) is not a rational number.if n is not a perfect square.

The number which is not a perfect square is-

Using the word " necessary and sufficent" rewrite the statement "j sqrtn is a rational number if and only if is a pefect square

Square root of a rational number

If tanalpha=sqrt(a) , where a is a rational number whch is not a perfect square, then which of the following is a rational number?

Which of the following number is not a perfect square ?

Which of the follwing numbers is not a perfect square ?

Which of the following numbers is not a perfect square ?

Which of the following numbers is not a perfect square ?