CPM Homework Banner

Home > PC > Chapter 4 > Lesson 4.3.1 > Problem 4-128

4-128.
  1. Find the exact value of each of the following trig expressions. Homework Help ✎

    1. sin

    2. cos

    3. cot

    4. sec

1. Plot the point on a unit circle.
2. Find the sides of this special triangle.
3. Be careful of the signs!
4. Write the answer.

Wrap clockwise because of the negative sign.