Examples of cube roots of rational numbes

Square root of a rational number

Square root of rational nos

Cube of 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.

Find the cube of rational number 3.1

Find the cube roots of

Some other easier ways to find the answer. Is the product greater than both the rational numb or less than both the rational numbers?