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).

Square root of rational nos

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.

The negative of a negative rational number is a positive rational number

Every negative integer is a negative rational number.

The square of an irrational number is always a rational number

Numbers to remember (Square and square root of a real number )