Property 5 Negative numbers have no square roots in the system of rational numbers.

Square root of a rational number

Property 1 If the units digit of a number is 237 or 8 then it does not have a square root in N( the set of natural numbers).

Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number.

Are the square roots of all positive integers irrational ? If not, then give an example of such a positive integer, the square root of which is a rational number.

Are the square roots of all positive integers irrational ? If not give an example of the square root of a number that is a rational number