Question

simplifY:
see below>>>>>>>>>>>

Answer 1

\[-\sqrt{-16} =\not a real number?\]

Answer 2

=not a real number??

Answer 3

thats right. it is equal to:

\[-\sqrt{16}*\sqrt{-1} = -4i\]

it is an imaginary number

Answer 4

possible answers are:
\[4\]
-4
16
or not a real number

Answer 5

last one

Answer 6

ok cool. so when its _i means not a real number? cool got it

Answer 7

yup