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Published byJessie Lewis Modified over 6 years ago
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Circular Functions & Trig Identities 2: Solving Trig Equations
Homework Haese & Harris 3rd Edition Ex 8E p208 Q1, 2, 5 and 9 Ex 11A.3 p260 Q1, 2, 5, 6 & 7 REFERENCE CHART: Counting by degrees and radians Abducted by an alien circus company, Professor Winters is forced to solve trigonometric equations in center ring. DEGREES RADIANS 0° 30° 45° 60° 90° 180° 270° 360°
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Reference Angle Reference angle (α) is the ________ angle formed between line OP and the _ _-axis (positive or negative branch). The reference angle is always considered positive. Examples: Find the reference angle:
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Value of trigonometric ratios of a Given Angle
Find the value of: STEPS for finding trig values of a given angle Draw the angle. Identify the Reference Angle (Acute angle formed with the x-axis) Determine the trigonometric ratio for the reference angle (using special triangles where applicable). Use CAST to determine the sign of the trigonometric ratio in that quadrant.
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Find the exact value of…
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Using Exact Values to Solve for θ
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Solving Equations Using the Unit Circle
Solve the equation Solve the equation
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Solving Equations Using the Unit Circle
Solve the equation Solve the equation
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Solving Equations Using the Unit Circle
Given that and find
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