The complex number is
.
Convert the complex number into polar form.
\
.
The polar form of
is
.
Find the cube roots of
.
Theorem :
\If
is a positive integer, the complex number
has exactly
distinct complex
roots.
The complex roots are
, where
.
.
Substitute
.

.
Substitute
.


.
Substitute
.



.
The complex fourth roots of
are
,
, and
.