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Basic Trigonometry Basic Trigonometry
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Using the unit circle to extend the SOH CAH TOA definition of the basic trigonometric functions.

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Adding and subtracting fractions Adding and subtracting fractions
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Renting vs. Buying (detailed analysis) Renting vs. Buying (detailed analysis)
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Detailed analysis of the rent vs. buy decision.

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Unit Circle Definition of Trig Functions Unit Circle Definition of Trig Functions
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Using the unit circle to define the sine, cosine, and tangent functions

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Angular velocity or how fast something is spinning.

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Posted by: khanacademy

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