Question

radical -120

Answer 1

\[\sqrt{-120}\]?

Answer 2

i guess you can say either it is not a real number
or you can say it is the complex number \(\sqrt{120}i\) or \(2\sqrt{30}i\)

Answer 3

It's 2i radical 5

Answer 4

actually it isn't

Answer 5

not if it is
\[\sqrt{-120}\]

Answer 6

yeah radical negative 120

Answer 7

ok then since \(-120=4\times 30\times -1\) you have
\[\sqrt{-120}=\sqrt{4}\sqrt{30}\sqrt{-1}=2\sqrt{30}i\]