# Inverse Sine and Inverse Cosine Trigonometric Functions Questions

Complete the following questions :

- In your own words, what does it mean to solve ? What does it mean using coordinates on a unit circle? Graphically (using cos
*x*) what does it mean? - In your own words, what does it mean to solve ? Why can’t you use the unit circle? How would you solve it using a calculator? Graphically?
- Why can’t we have the range of both the inverse sine and inverse cosine be [0,pi]? It certainly would be easier to remember!
- In what sense can we say that the inverse sine function “undoes” the sine function? And the sine function “undoes” the inverse sine function? What conditions need to be met?
- Are cos
^{–}^{1}(x) and 1/cos(x) the same thing? Explain. - Explain how to use your calculator to find csc
^{-1}(-4).*You do not need to calculate it.*