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no it is an irrational number

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Q: Is root 2 a rational
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Related questions

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 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 2 square root rational?

Yes, it is the principal square root of 4, and it is rational.


Is 2 a rational square root?

Yes, it is the principal square root of 4, and it is rational.


Is the square root of 4 rational?

Yes because the square root of 4 is 2 which is a rational number


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

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


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.


Math help can anyone show you how to do this please Prove or disprove that if a and b are rational number then a to the power of b is rational?

2 and 1/2 are rational numbers, but 2^(1/2) is the square root of 2. It is well known that the square root of 2 is not rational.


Is the square root of 4 rational and why?

yes its a rational number because the square root of 4 is 2 and 2 can be put over 1


Is a square root of 2 rational or irrational?

The square root of 2 is an irrational number


Is the square root 2 a rational number?

No, they are not.


What is a counterexample for the rational numbers are closed under the operation of taking a square root?

2 = 2/1 is rational. Sqrt(2) is not rational.