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

4-128.

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

sin

cos

cot

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.