### Home > CCA2 > Chapter 7 > Lesson 7.2.1 > Problem 7-123

7-123.

Evaluate each of the following expressions exactly. Homework Help ✎

Draw a unit circle and locate each angle. Draw a reference triangle. Use special triangles.

7-123.

Evaluate each of the following expressions exactly. Homework Help ✎

Draw a unit circle and locate each angle. Draw a reference triangle. Use special triangles.