Lesson 4

Are You Ready?

 

Complete these questions. If you experience difficulty and need help, visit Refresher or contact your teacher.

1. Determine in which quadrant(s) the terminal arm would lie for the given values of θ.
   
   1. sin θ < 0 Answers
   2. cos θ > 0 Answers
   3. tan θ < 0 and sin θ > 0 Answers
2. Point A(2, −3) lies on the terminal arm of angle θ in standard position. Determine the exact trigonometric ratios for sin θ, cos θ, and tan θ. Answers
3. Determine the approximate value of each trigonometric ratio to the nearest hundredth.
   
   1. tan 260° Answers
   2. sin 190° Answers
   3. cos 50° Answers
4. Determine the exact values of each trigonometric ratio.
   
   1. sin 60° Answers
   2. cos 135° Answers
   3. tan 330° Answers

If you answered the Are You Ready? questions without problems, move to Discover.

 

If you found the Are You Ready? questions difficult, complete Refresher.