Q: Is square of 2 a real number?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

Yes. In general, the square root of any non-negative number is a real number.

The square of a real number is always a real number.

Of course, not only can it be a real number but it is a real number. When you take the square root times itself, the result is a number that is real.

The square root of any positive real number (as in this case) is a real number. (Such square roots are usually irrational.)The square root of a negative real number, such as the square root of -15, is an imaginary, and therefore also a complex, number.

The square roots of any positive real number are a positive and a negative real number. The square roots of any negative real number are a positive and a negative imaginary number. The square roots of any imaginary number or any complex number are two complex numbers.

Related questions

Yes. In general, the square root of any non-negative number is a real number.

The unique nonnegative square root of a nonnegative real number. For example, the principal square root of 9 is 3, although both -3 and 3 are square roots of 9.

The square of a real number is always positive no matter which real number you start with. Therefore, a negative number squared is positive. For example: 2 * 2 = 4, -2 * -2 = 4.

the square root of 2

The square of a real number is always a real number.

pi, or the square root of 2.

Square root of (2) Pi

The short answer is "Nothing". In the complex domain, the number of nth roots of any real number is n. Every non-negative real number has 2 square roots. Every real number has 3 cube roots. Every non-negative real number has 2 real square roots and 2 imaginary ones. and so on. So what?

The square root of 2 is real number but it is not rational number because it can't be expressed as a fraction.

No. "Pi", "e", and the square root of 2 are all real and irrational.

It is a real number in the sense that it is an irrational number which can't be expressed as a fraction and its length is 5 times the square root of 2

Of course, not only can it be a real number but it is a real number. When you take the square root times itself, the result is a number that is real.