It is rational.
It is rational. It is rational. It is rational. It is rational.
-1,0,or 1 the negative square root of four is negative two and the square root of four is two
Yes, because when x equals 1, the square root of x is rational and the square root of -x is irrational, and when x equals -1, the square root of x is irrational and the square root of -x is rational.
No, it is a complex number.
rational
It is rational.
If the positive square root (for example, square root of 2) is irrational, then the corresponding negative square root (for example, minus square root of 2) is also irrational.
It is rational. It is rational. It is rational. It is rational.
The negative square root of 16 is -4. It can be written as the ratio of 792 to -198, so it's rational.
-1,0,or 1 the negative square root of four is negative two and the square root of four is two
Yes it is.
No.
Yes, because when x equals 1, the square root of x is rational and the square root of -x is irrational, and when x equals -1, the square root of x is irrational and the square root of -x is rational.
The square root of -81 is an imaginary number, specifically 9i, where i represents the imaginary unit equal to the square root of -1. Since the square root of -81 does not result in a real number, it is considered irrational. Rational numbers are those that can be expressed as a ratio of two integers, whereas irrational numbers cannot be expressed in this form.
irrational
Yes.