Answer:
2i
Step-by-step explanation:
-4 has no real square root only, imaginary numbers. so do as per usual. Square root of for is 2 and and the i because it is imaginary
The answer is 2i where i is the imaginary number.
The imaginary number i is defined as square root of -1.
So square root of -4
= square root of (4)*(-1)
= square root of (4) * square root of (-1)
= 2i
