Angles, Arclength, Area of Sectors, and Radial Speed

• Compute sin, cos and tan of the angles 45 , 30 , and 60 using right triangles and geometry. • Use a calculator to evaluate sin, cos, and tan of other angles. • Describe the relationship between sin and cos and the coordinates of a point on a unit circle. • Explain why the right triangle definition of cos and sin (adj/hyp and opp/hyp) ................
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