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Yes, the square of any rational number is also a rational number.

The square root of 2 is not a rational number.

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Related Questions

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 a nun perfect square rational?

A non-square rational number is a rational number that cannot be expressed as the square of any rational number. For example, ( \frac{2}{3} ) is a non-square rational number because there are no rational numbers whose square equals ( \frac{2}{3} ). In general, any rational number that does not have a perfect square as its numerator and denominator is considered a non-square 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 square root of 4 rational?

The square root of 4 is 2. 2 is a rational number so they square root of 4 is rational.


Is an imperfect square a rational number?

No. The square of 4√(2) is an imperfect square. But since it is = sqrt(2), it is not rational.


A short note on square root of rational number?

Square root of a rational number may either be rational or irrational. For example 1/4 is a rational number whose square root is 1/2. Similarly, 4 is 4/1 which is rational and the square root is 2 which of course is also rational. However, 1/2 and 2 are rational, but their square roots are irrational. We can say the square root of a rational number is always a real number. We can also say the rational numbers whose square roots are also rational are perfect squares or fractions involving perfect squares.


Is the square root of 4 a rational or irrational number?

The square root of 4 is 2 which is a rational number


Is 2 squared rational or irrational?

The square of any rational number is also rational.


Is the square root of 72 rational?

No, the square root of 72 is not rational. It can be simplified to 6√2, where √2 is an irrational number. Since the product of a rational number (6) and an irrational number (√2) is irrational, the square root of 72 is also irrational.


Is the square root 2 a rational number?

No, they are not.


Is the square of 250 a rational number?

(250)2 = 62,500 Yes, that's a rational number.


How can you multiply 2 irrational number to get a rational number?

The square root of 2, for example, is irrational.sqrt(2)*sqrt(2) = 2 which is rational.