Trigonometry (don’t understand ) A point on the terminal side of angle θ is given. Find the exact value of all 6 trigonometric function of θ.

1. (-8,15) 2. (2,5)

Find the exact value of the trig function of the given angle, or state that the expression is undefined.

3. Sin 90° 4. Cos 180°

5. Tan 180° 6. Sin 0

7. Sec 270

Let θ be an angle in standard position. Name the quadrant in which θ lies.

8. Sinθ<0, tanθ>0 9. Cosθ>0, sinθ<0

Find the exact value of the remaining trigonometric functions of θ.

10. cosθ= -3/5, θ in quadrant III

11. Sinθ= 5/13, θ in quadrant II

12. Tanθ= 1/6, θ in quadrant III

13. Secθ= 13/12, θ in quadrant I

Find the reference angle for each angle

12. 163° 13. 266° 14. 297°

Use the reference angle (and special angles) to find exact value of each expression. You should not need a calculator.

15. Cos 135 ° 16. Tan 240 °

17. Cot 150 ° 18. Sin 300

19. Cos 210