<em>Solve: </em>
Divide both sides by 2.
Take the sine inverse of both sides:
But we know there are more solutions if we extend the domain. In fact, there are infinitely more solutions since the domain of sine is all real x values.
Thus, we can develop a general solution:
For every
units, there is another solution for both 
and 
General solutions:
Divide both sides by 2.
Take the sine inverse of both sides:
But we know there are more solutions if we extend the domain. In fact, there are infinitely more solutions since the domain of sine is all real x values.
Thus, we can develop a general solution:
For every
General solutions: