Chapter 7.3, Problem 6E

(a)

To determine

The cube roots of $1$ in standard form $a+bi$ and their graph on unit circle with center at origin.

(b)

To determine

The fourth roots of $1$ in standard form $a+bi$ and their graph on unit circle with center at origin.

(c)

To determine

The eighth roots of $1$ in standard form $a+bi$ and their graph on unit circle with center at origin.

(d)

To determine

The sixth roots of $1$ in standard form $a+bi$ and their graph on unit circle with center at origin.