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SUN

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LESSON 4.1

Right Triangle Trigonometry

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LESSON 4.3

Trigonometric Functions on the Unit Circle

Lesson Overview:

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a. Solving the Unit Circle

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Part A: The Unit Circle and How to Fill It Out 

In mathematics, a unit circle is a circle with a radius of one. Frequently, especially in trigonometry, the unit circle is the circle of radius one centered at the origin in the Cartesian coordinate system in the Euclidean plane.

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The Unit Circle:​

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Here is a Youtube Video that can help you to fill it in:​

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The Unit Circle on the SAT

 

 

 

 

 

 

 

 

 

 

 

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The Unit Circle Real World

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Conclusion:

You should be able to find the exact value of degrees and radians based on the information you know about the unit circle and the rules that go along with each quadrant. 

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About Us

We have created ten easy to understand trigonometry lessons over 2 key areas to help you do well in math. With our lessons you will learn how, and when to graph Sin and Cos, how to extract them to a simpler level.  I will also be explaining the purpose of the main Angles and how they can be used in different types of problems. In addition I will be emphasizing how to do expressions and how relates to Trigonometry.  

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