Evaluating Trigonometric Functions (Precalculus Review 3) September 10th, 2015.

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Presentation transcript:

Evaluating Trigonometric Functions (Precalculus Review 3) September 10th, 2015

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: Quad I All (all) Quad II Students (sin) Quad III Take (tan) Quad IV Calculus (cos)

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

Ex. 2: Evaluate each.

V. Trigonometric identities Reciprocal Identities: Quotient Identities: Pythagorean Identities: Double Angle Identity:

VI. Graphs of Trigonometric Functions

Vertical Asymptotes: D: All real numbers except