The square roots of -81 are ±9i where i is the imaginary square root of -1.
Square roots can be positive or negative. 9 x 9 = 81 -9 x -9 = 81 9 is the positive square root of 81.
The square root of -81 = 9 i9i
The square root of 81 is 9
The square root of 6561 is 81
The square roots of -81 are ±9i where i is the imaginary square root of -1.
No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).
Square root of 9: 3Square root of -81: 9i The product of both is 27i
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.
x2=-81take the square root of both sidessince 81 is negative you need to take 81 times i when i=-1 then solve as the square root of 81. your answer is x=9i
There is no square root for a negative number. It is an imaginary number.
Square roots can be positive or negative. 9 x 9 = 81 -9 x -9 = 81 9 is the positive square root of 81.
-1/9
It is -10/9
81 because there are no negative square roots
81 is the square root and 9.5 is under root.
The square root of -81 = 9 i9i