The trigonometric equation is .

.

.

The function sin x  has a period of , first find all solutions in the interval .

The function sin x  is negative in third and fourth quadrant.

In third quadrant,

.

In fourth quadrant,

.

So the solution is .

Finally, add multiples of to each of these solutions to get the general form , where n is an integer.

, where n is an integer.