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Evaluating Trigonometric Functions (Precalculus Review 3)

September 7th, 2017. Evaluating Trigonometric Functions (Precalculus Review 3). I. SOH CAH TOA. II. Special Right Triangles. *To make things simple, use x=1 when evaluating trig ratios. III. Radian Measure. Ex. 1: Evaluate each. *To remember which functions are positive in each quadrant:.

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Evaluating Trigonometric Functions (Precalculus Review 3)

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  1. September 7th, 2017 Evaluating Trigonometric Functions (Precalculus Review 3)

  2. I. SOH CAH TOA

  3. II. Special Right Triangles *To make things simple, use x=1 when evaluating trig ratios.

  4. III. Radian Measure

  5. Ex. 1: Evaluate each.

  6. *To remember which functions are positive in each quadrant: Quad II Students (sin) Quad I All (all) Quad III Take (tan) Quad IV Calculus (cos)

  7. IV. Quadrant Angles • *Use points on the unit circle to evaluate trig functions for quadrant angles.

  8. Ex. 2: Evaluate each.

  9. V. TRIGONOMETRIC IDENTITIES • Reciprocal Identities: • Quotient Identities: • Pythagorean Identities: Double Angle Identity:

  10. VI. Graphs of Trigonometric Functions

  11. D: All real numbers except Vertical Asymptotes:

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