Question

Question #051a2

Answer 1

A square root is the opposite of a square (exponent of 2).

Explanation:

For example:

`sqrt121 = 11*11;11^2`

Notice that in the answer (11*11) both numbers are the same.

`sqrt -1` is a bit more complicated, with the answer being `i` as no two identical numbers can be multiplied together to get -1.

Hope this helps.