The equation is
on
.

Apply zero product property.
\
and 
and
.
\
Solve the equation
.
The general solution of
, then
.
Where
is an integer.
Substitute
in
.

.
Substitute
in
.

.
Substitute
in
.

.
is not in the domain.
Solution for
in the interval
, then
.
\
Solve the equation
.
The general solution of
, then
, where
is an integer.
Substitute
in
.

.
Substitute
in
.

.
Solution for
in the interval
, then
.
Solution set is
.
\
.