Bell Ringer
Right Triangles in the Unit Circle Tuesday, May 10, 2016
The Unit Circle in the Coordinate Plane
Trigonometric Ratios
Reciprocal Trigonometric Ratios
Trig Ratios in a Circle
When are the trig values positive and when are they negative? Just remember: If you want someone to be positive, Add Sugar To Coffee.
Examples
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Pythagorean Identity cos 2 (θ ) + sin 2 (θ) = 1
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Assignments 13.3B Worksheet All Odd problems need to be completed as a Classwork assignment. – Turn in when ALL ODD problems are complete. IF you don’t finish in class, turn in tomorrow. All Even problems need to be completed as a Homework assignment.
Exit Ticket 1. What are the possibilities for the x and y coordinates of the quadrantal angles? 2. What are the “special” angles? 3. What are the (positive or negative) possibilities for the x and y coordinates of the “special” angles?