What is the square root of -16?

Answer 1

The square root of 16 is 4 or -4 (negative four).

This is because 4x4 and (-4)X(-4) are both equal to 16.

When the radial sign √ is used, by convention it means the positive square root, ie √16 = 4.
4

Answer 2

it is 4i, where i is the object such that i squared =-1

Answer 3

The square root of 1.6 is 1.26491106

Answer 4

4, because 4 x 4 = 16

Answer 5

4

* * * * *

Or -4.

Answer 6

4

Answer 7

It is: 2

Answer 8

4