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Section 4.4 Trigonometric Functions of Any Angle. Trigonometric Functions of Any Angle. Example. The Signs of the Trigonometric Functions. Example. Example. Reference Angles. Example. Example. Evaluating Trigonometric Functions Using Reference Angles. 45. 30. 2. 1. 45. 1. 60.
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Trigonometric Functions of Any Angle
45 30 2 1 45 1 60 1
(a) (b) (c) (d)
(a) (b) (c) (d)