quadrantal angle · trigonometric functions of any angle let o be any angle in standard position...
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• quadrantal angle
• reference angle
• unit circle
• circular function
• periodic function
• period
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Evaluate Trigonometric Functions Given a Point
Let (–4, 3) be a point on the terminal side of an angle θ
in standard position. Find the exact values
of the six trigonometric functions of θ.
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Let (–3, 6) be a point on the terminal side of an angle Ө
in standard position. Find the exact values
of the six trigonometric functions of Ө.
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Evaluate Trigonometric Functions of Quadrantal Angles
A. Find the exact value of cos π. If not defined, write undefined.
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Evaluate Trigonometric Functions of Quadrantal Angles
B. Find the exact value of tan 450°. If not defined, write undefined.
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Evaluate Trigonometric Functions of Quadrantal Angles
C. Find the exact value of . If not defined, write undefined.
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Find the exact value of sec If not defined, write undefined.
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Find Reference Angles
A. Sketch –150°. Then find its reference angle.
Answer: 30°
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Find Reference Angles
Answer:
B. Sketch . Then find its reference angle.
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Find the reference angle for a 520o angle.
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Use Reference Angles to Find Trigonometric Values
A. Find the exact value of .
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Use Reference Angles to Find Trigonometric Values
B. Find the exact value of tan 150º.
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Use Reference Angles to Find Trigonometric Values
C. Find the exact value of .
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Find the exact value of cos .
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End of lesson 1, beginning of lesson 2