4 The Trigonometric Functions
LEARNING OUTCOMES
After completion of this chapter, the student should be able to:
Define positive and negative angles
Express an angle in degrees or radians and convert between the two measurements
Determine a standard position angle
Define, evaluate, and use the six trigonometric functions
Use the Pythagorean theorem and trigonometric functions to solve a right triangle
Employ the inverse trigonometric functions to solve for a missing angle
Solve application problems involving right triangles
Triangles are often used in solving applied problems in technology. A short list of such problems includes those in air navigation, surveying, rocket motion, carpentry, structural design, electric circuits, and astronomy. ...
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