Question

Find negative square root 16
A. -4
B.4
C.+4
D-8

Answer 1

4i

Explanation:

negative numbers don't have a square root

√-16 = √16 * √-1

√-1 = i (where i stands for iota)

√-16 = √16 * √-1

= 4 * i

= 4i