### Home > A2C > Chapter 12 > Lesson 12.3.1 > Problem 12-132

12-132.

Find the exact value for each of the following trig expressions: Homework Help ✎

Explain the relationship between the answers from part (a) and (b) above.

Use the unit circle to substitute values for sine and cosine and simplify.

What do you know about the relationship between tanθ, sinθ, and cosθ?