http://www.mindbites.com/lesson/5124-trig-the-unit-circle-degrees-radians-335 This 80 minute trigonometry lesson is a study of the Unit Circle (a circle with a radius of one unit) and its x and y coordinates. This lesson will show you how to find the exact value of the six trig ratios of: - all quadrantal angles 0 or 2 Pi radians, Pi/2 radians, Pi radians, 3Pi/2 radians, - angles with a reference angle of Pi/4 radians (45 degrees) - angles with a reference angle of Pi/6 (30 degrees) - angles with a reference angle of Pi/3 (30 degrees) This lesson contains explanations of the concepts and 12 example questions with step by step solutions plus 5 interactive review questions with solutions. Lessons that will help you with the fundamentals of this lesson include: - 300 Basic Trigonometry Part I (http://www.mindbites.com/lesson/5125) - 315 Basic Trigonometry Part II (http://www.mindbites.com/lesson/5123) - 320 Trigonometry on the Coordinate Plane (http://www.mindbites.com/lesson/5122) - 330 Arc Length Solving 1st Degree Trig Equations (Radians) (http://www.mindbites.com/lesson/5130)
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