Let's remind ourselves of what the sine graph looks like so that we can see how many solutions we should be expecting: Therefore, from the graph of the function, we can see that we should be ...

Watch this video to learn about solving trigonometric equations ... this means that we will be in the two quadrants where the sine function is negative - the third and fourth quadrants.

These questions will help the students prepare inverse trigonometric functions ... since the domain of the sine function is (-∞,∞), sin⁻¹ x is well defined in the domain (-∞,∞).