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Bell Work

Bell Work. 1. Find the missing side of each triangle. 7.3 Sine & Cosine Functions. Solving trig. functions of Sin and Cos. Sine and Cosine. Sin θ = Cos θ = From: SOHCAHTOA. Example. If the terminal ray passes through (-3, -4) find sin and cos. Example.

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Bell Work

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  1. Bell Work 1. Find the missing side of each triangle

  2. 7.3 Sine & Cosine Functions Solving trig. functions of Sin and Cos

  3. Sine and Cosine • Sin θ= Cos θ = • From: SOHCAHTOA

  4. Example • If the terminal ray passes through (-3, -4) find sin and cos.

  5. Example • If Sin θ =-5/13 and θ is in the IV Quadrant, find Cos θ . • Try: Given Cosθ=-24/25 in QIII find Sinθ.

  6. Where are the trig values Positive?

  7. Example • State whether positive or negative • Cos 60 • Sin 210 • Cos • Sin

  8. Finding Trig Values Find the following values on the unit circle.

  9. Example • Solve for θ • cos θ= -1 • Sin θ = 0

  10. Groups: • Class Exercises: P. 271: 1-6all, 8, 9

  11. Homework • P. 272 • 1-5all, 8-16even, 17-28all

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