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Is the square root of 5 and squa re root of 21 irrational?

Anonymous

∙ 15y ago

Updated: 9/18/2023

Yes. The square root of a natural number (positive integer) is either an integer, or an irrational number.

Wiki User

∙ 15y ago

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Is the square root of 21 irrational?

Yes, the square root of 21 is irrational. This is because 21 is not a perfect square, and the square root of any non-perfect square is irrational. Additionally, the square root of 21 cannot be expressed as a fraction of two integers.

Is the square root of 21 an irrational or a rational number?

irrational

Is the square root of 84 a rational number?

No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number

Is the square root of 21 a real number?

Yes, albeit an irrational number

Is the square root of eighteen an irrational number?

Yes. It would be 21/2 * 91/2, or "three root two". Root two is an irrational number, so it's products - such as root 18, will be as well.

Related Questions

Is the square root of 21 irrational?

Yes, the square root of 21 is irrational. This is because 21 is not a perfect square, and the square root of any non-perfect square is irrational. Additionally, the square root of 21 cannot be expressed as a fraction of two integers.

Is the square root of 21 an irrational or a rational number?

irrational

Is negative square root of 21 irrational?

Yes, as is the positive square root.

Is the square root of 21 a rational number?

No. The square root of an integer is either an integer, or an irrational number.

The square root of 21 is it rational or irrational?

irrational, it has a never ending decimal

Is the square root of 17 divided by 21 irrational?

0.8095

Is 21 over the square root of 4 a rational or irrational?

It is equal to 21/2 which is a rational number

What is the square root of 84 simplify?

It is: 2 times the square root of 21 and it's an irrational number

What is and irrational number between 4.5 and 4.6?

the square root of 21

Is the square root of 84 a rational number?

No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number

What is an irrational number between 4.5 and 4.6?

the square root of 21

Is the square root of 21 a real number?

Yes, albeit an irrational number

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