no. is not a real number
There is no real number [square] root of a negative number. There is a real cube root and a real fiftth root etc, but root, by itself, implies square root.
the square root of 25 is 5
The square root of 8 over 25 is irrational, and real.
You can't take the square root of a negative number. The square root of -25 is 5i. It's an imaginary number.
Neither. It is not a real number but a complex number. Sqrt(-25) = i5 where i is the imaginary number which is the square root of -1.
If by "radical" you mean "square root of", then yes. Both square roots of 25 are real numbers.
Because the square root of -25 would be that number that, squared, would equal -25. No number, positive or negative, can result in a negative square. Since -25 is a negative number, no number, positive or negative, can be squared to equal -25.
The principal root of a number is the positive real square root of the number - if it exists. Since -25 is negative, it does not have a real square root. Its square roots are the imaginary numbers +/-5i where i is the [imaginary] square root of -1. i is neither positive nor negative and so neither +5i nor -5i is a principal root.
The square root of 25 is 5 ... rational.
Any odd root, for example the cube root, of -3.24 is a real number.
The square root of seven is a real number, but it is not a whole 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 0 is 0, which is a real number.
The square root of 25 is 5, which is a rational number.
Yes. It's 9. The square root of every positive real number is a real number.
The square root of a positive number results in a positive number. For example, the square root of 25 is 5. * * * * * Not true! There are two real square roots for every positive number: one positive and one negative. -5 is as much a square root of 25 as +5 is. However, the positive root is the principal root and so is often presented as the only root.
No. In general, the square root of a negative number is an imaginary number, which is not a real number.
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.
Yes, every real number has a unique cube root.
Yes. In general, the square root of any non-negative number is a real number.
The square root of -1 is not real.
You cannot in real numbers because the square of any number, negative or positive, is positive. However, -25 does have a square root in complex numbers: it is + or - 5i where i is the imaginary square root of -1.
No, it is not, because real numbers include negative numbers. The square root of a negative number is an imaginary number