# Math Help - Complex numbers

1. ## Complex numbers

New to this concept don't understand
1. Find all the complex 5th
th roots of -i and sketch them in the complex plane. (Please leave
the answers in exponential form.)

2. ## Re: Complex numbers

Well the most general way to write -i in exponential form is \displaystyle \begin{align*} e^{\left( 2n + 1 \right) \pi } \end{align*} where \displaystyle \begin{align*} n \in \mathbf{Z} \end{align*}. What power do you take it to to find a fifth root?