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# Pre-Cal 40S Slides February 6, 2008

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Introduction to the unit circle.

Introduction to the unit circle.

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### Transcript

• 1. Introducing the unit circle and it's family of functions ... Me Fish!
• 2. How many radians are there between the minute and hour hands of a clock at 4:00?
• 3. In a circle of radius 6 cm, a sector has a central angle of 30°. What is the area of this sector in square centimeters? cmon francis
• 4. State a positive coterminal angle for .
• 5. P(θ) is on a ray passing through the point (6, 8). Find the sine, cosine, and tangent of the angle θ.
• 6. P(θ) is on a ray passing through the point (6, 8). Find the sine, cosine, and tangent of the angle θ.