# 8 Trigonometric Functions of Any Angle

# LEARNING OUTCOMES

After completion of this chapter, the student should be able to:

Determine the magnitude and sign of any trigonometric function of any angle

Identify reference angles and use them to evaluate trigonometric functions of angles in any quadrant

Express an angle in degrees or radians and convert between the two measurements

Given the value of a trigonometric function of an angle, find the angle(s)

Use radian measure of an angle to find circular arc length

Solve problems involving area of a sector of a circle

Solve problems involving angular velocity

Solve application problems involving trigonometric functions of any angle

When we introduced the trigonometric functions in Chapter 4, we ...

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