One cube root of is
and
.
.
.
To find the cube roots of , write
in polar form.
.
Find .
If , then
.
.
Polar form of is
.
Write an expression for the cube roots.
\.
Let successively to find the cube roots.
Substitute in
.
.
Substitute in
.
.
Substitute in
.
.
Substitute in
.
.
Cube roots are ,
,
and
.
.
Cube roots are ,
,
and
.