### Home > PC > Chapter 6 > Lesson 6.4.2 > Problem 6-156

6-156.

1. Solve for all values since it is not domain restricted.

2. Draw a unit circle to be sure you have all values.

3. Be careful with signs!

1. Solve for all values since it is not domain restricted.

2. Draw a unit circle to be sure you have all values.

3. Be careful with signs!