Question

Which of the following shows V-16 simplified and written as a complex number?

Answer 1

Given:

$\sqrt[]{-16}$

Sol:.

$\begin{gathered} \sqrt[]{-16} \\ =\sqrt[]{16}\times\sqrt[]{-1} \\ =\sqrt[]{4^2}\times\sqrt[]{-1} \\ =4i \end{gathered}$