That's the same as the square root of 729, multiplied by i - where "i" is the so-called "imaginary unit".
The square root of 729 is 27 and 729 squared is 531441
The cube root of the square root is the sixth root. The sixth root of 729 = 3
No because the square root of 729 is 27 which is a rational number.
Square root(729) = 27
It is 27
27
27
Yes - the square root of 729 is equal to ±27.
The cube root of 729 is 9 and 9 squared is 81.
27i where i is the square root of -1.
27
729