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# 5.2.1 trigonometric functions

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### 5.2.1 trigonometric functions

1. 1. 5.2 Trigonometric Functions<br />Sine, Cosine, Tangent, <br />Cosecant, Secant, Cotangent<br />
2. 2. Sine<br />
3. 3. Cosine<br />
4. 4. Tangent<br />
5. 5. Cosecant<br />
6. 6. Secant<br />
7. 7. Cotangent<br />
8. 8. Review - Special Right Triangles<br />You MUST <br />know these!<br />
9. 9. Find the exact value of the trig functions for the given angle<br />Quadrant IV<br />
10. 10. Find the exact value of the trig functions for the given angle<br />Reference Angle 45⁰<br />
11. 11. Find the exact value of the trig functions for the given angle<br />
12. 12. Find the exact value of the trig functions for the given angle<br />
13. 13. Find the exact value of the trig functions for the given angle<br />
14. 14. Find the exact value of the trig functions for the given angle<br />
15. 15. Find the exact value of the trig functions for the given angle<br />
16. 16. Find the exact value of the trig functions for the given angle<br />
17. 17. Find the exact value of the trig functions for the given angle<br />
18. 18. Find the exact value of the trig functions for the given angle<br />
19. 19. Find the exact value of the trig functions for the given angle<br />Quadrant II<br />
20. 20. Find the exact value of the trig functions for the given angle<br />
21. 21. The angle measures that place the terminal ray on one of the axes.<br />Degrees - 0⁰, 90⁰, 180⁰, 270⁰, 360⁰, …<br />Radians – 0, π/2, π, 3π/2, 2π, …<br />For these, draw and label a point 1 unit from the origin to find the values of the trigonometric functions.<br />Quadrantal Angles<br />
22. 22. r=1<br />(-1,0)<br />
23. 23. Assignment<br />p. 384 # 51 - 66 multiples of 3<br />
24. 24. Using your Calculator…<br />Set MODE according to how the angle is measured (“degrees” or “radians”)<br />Use the SIN, COS, or TAN keys<br />Close parentheses after the angle measure<br />
25. 25.
26. 26.
27. 27.
28. 28. Alternative<br />
29. 29. If (-5,12) is on the terminal side, find the exact value of the six trig functions<br />Quadrant II<br />(-5,12)<br />13<br />12<br />-5<br />
30. 30. If (2,-1) is on the terminal side, find the exact value of the six trig functions<br />Quadrant IV<br />2<br />-1<br />(2,-1)<br />
31. 31. Assignment<br />p. 384 # 69 - 81 multiples of 3, 83 - 92<br />