Question #051a2

1 Answer
Mar 31, 2016

Answer:

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.