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5-3 The Unit Circle.

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Presentation on theme: "5-3 The Unit Circle."— Presentation transcript:

1 5-3 The Unit Circle

2 Trig Functions in relation to sin and cos
Tan θ Sec θ Cot θ Csc θ

3 Ex 17: Use the unit circle to find each value. Sin 150˚ Cos 225˚
Sec 60˚ Csc 300˚ Tan 180˚ Cot 240˚

4 Ex 3: Use the unit circle to find the values of the six trig functions for 210˚ Sin 210˚ Cos 210˚ Tan 210˚ Csc 210˚ Sec 210˚ Cot 210˚

5 Angles in standard position
Ex 17-16: Find the values of the six trigonometric functions for angle θ in standard position if a point with coordinates (-15, 20) lies on its terminal side.

6 Ex Last One: Suppose θ is an angle in standard position whose terminal side lies in Quadrant IV. If sec θ = find the values of the remaining five trig functions.


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