answersLogoWhite

0


Best Answer

Sure. Let's take an example with numbers instead of variables. 8/9 is a rational number - the ratio of two integers. If you square it, you get (8/9)2 = 82/92 = 64/81; that is, if you square each integer, you get an integer again. Therefore, the resulting number is rational again - a number that can be expressed as the ratio of two integers. Replace with any other integers; you will still have a ratio of integers if you square it.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Square of a rational number is rational?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Is the square of 2 rational number?

Yes, the square of any rational number is also a rational number.The square root of 2 is not a rational number.


Is every rational number a perfect square?

No. Though every perfect square is a rational number, not every rational number is a perfect square. Example: 2 is a rational number but sqrt(2) is not rational, so 2 is not a perfect square.


Is the square root of 29 a rational or an irrational number?

The square root of 29 is an irrational number.


Does there exist an irrational number such that its square root is rational?

No, and I can prove it: -- The product of two rational numbers is always a rational number. -- If the two numbers happen to be the same number, then it's the square root of their product. -- Remember ... the product of two rational numbers is always a rational number. -- So the square of a rational number is always a rational number. -- So the square root of an irrational number can't be a rational number (because its square would be rational etc.).


What is square of a rational number?

Another rational number


Is the square root of 25 a rational number?

The square root of 25 is 5 ... rational.


What is the product of a rational number multiplied by itself?

It is the square of the rational number.


Is the square of 81 a rational number?

The square root of 81 is 9 which is a rational number


Is the square of -8 a rational number?

The square of a negative number is always positive. The square of -8 = 64, a rational number


Is the square root of 25 irrational or a rational number?

The square root of 25 is 5 which is a rational number * * * * * Or -5, which is also rational.


Is the square root of 4 irrational or rational?

It is rational. The root of a perfect square, such as 4, is rational; the root of any positive integer that is not a perfect square is an irrational number.


Is the square root of 100 rational or irrational number?

It is 10 which is a rational number.