-1/9
No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).
It is -10/9
The square roots of -81 are ±9i where i is the imaginary square root of -1.
9
Square root of 9: 3Square root of -81: 9i The product of both is 27i
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.
The square root of 81 is 9, and the square root of 49 is 7. Therefore, the square root of 81 over 49 can be expressed as (\sqrt{\frac{81}{49}} = \frac{\sqrt{81}}{\sqrt{49}} = \frac{9}{7}). So, the answer is (\frac{9}{7}).
Square roots can be positive or negative. 9 x 9 = 81 -9 x -9 = 81 9 is the positive square root of 81.
81 because there are no negative square roots
81 is the square root and 9.5 is under root.
sqrt(25/81) = 5/9