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SIN E

LG 4-3 Evaluating Trigonometric Functions. SIN E. COS INE. TAN GENT. SOH CAH TOA. hypotenuse. opposite. hyp. opp. adjacent. adj. S ome. SOH CAH TOA. O ld. H ippie. C ame. A. H oppin’. T hrough. O ur. A partment. Old Hippie. S in. SOH CAH TOA. O pp. H yp. C os. A dj.

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SIN E

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  1. LG 4-3 Evaluating Trigonometric Functions SINE COSINE TANGENT

  2. SOHCAHTOA hypotenuse opposite hyp opp adjacent adj

  3. Some SOHCAHTOA Old Hippie Came A Hoppin’ Through Our Apartment Old Hippie

  4. Sin SOHCAHTOA Opp Hyp Cos Adj Hyp Tan Opp Adj Old Hippie

  5. SOHCAHTOA csc sec cot CHOSHACAO ??

  6. SOHCAHTOA for the Unit Circle Reciprocal =

  7. Find the values of sin 45°, cos 45°, and tan 45° WE DO NOT Use a Calculator From the unit circle sin 45° cos 45º tan 45°

  8. Find sin, cos, tan of 60°;sin, cos, tan of 30° From the unit circle sin 60° sin 30° cos 60° cos 30° tan 60° tan 30°

  9. You try • Find the exact value of • Without using a calculator, evaluate the six trigonometric functions for an angle of 180°.

  10. More examples: • Find the exact value of • Without using a calculator, evaluate the six trigonometric functions for an angle of 180°. • Without using a calculator, evaluate the six trigonometric functions for an angle of 120°.

  11. What about angles not on UC? • Find the cosine function for an angle in standard position whose terminal side passes through the point (-5,12). • How do you know it is NOT on UC?

  12. Another Example (test question!): • Find the six trigonometric functions of Θ if Θ terminates in Quadrant III and

  13. Ticket out the Door • Find exact values (no decimals) of the six trigonometric functions of 300°.

  14. Homework: • BLOG • Quiz Tomorrow on Unit Circle (think problems from the worksheet!) • (degrees, radians and coordinates) • No trig ratio stuff yet • UNIT TEST IS SEPTEMBER 30th

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