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Sine

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From a Right Angle Triangle

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Explanation - From a Right Angle Triangle

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Consider a right angle triangle with hypotenuse of 1, and an angle of 40º.

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Hypotenuse 1, Fixed Angle

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Trigonometry 1

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Why Study Trigonometry

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30-60-90 Triange

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45-45-90 Triangle

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Sine

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Chord

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Cosine

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Law of Sines

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Law of Cosines

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Pythagorean Identity

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Tangent

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Secant

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Unit Circle

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Cosecant

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Cotangent

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