Is the square root of negative 25 a rational number?

Answer 1

The square root of -25 is not a real number, as it involves taking the square root of a negative number which results in an imaginary number. In this case, the square root of -25 is 5i, where i represents the imaginary unit. Since rational numbers are a subset of real numbers, the square root of -25, being an imaginary number, is not a rational number.

Answer 2

No. It is not even a real number but an imaginary number. You are not likely to come across such numbers unless you study further maths at college or higher.

Answer 3

No.