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Sine

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From a Right Angle Triangle

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Summary - Definition

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In a right angle triangle, the sine function of an angle is the ratio of the angle's opposite side and the hypotenuse.

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Learning path

$Icon for Trigonometry 1$

Trigonometry 1

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Why Study Trigonometry

$Icon for 30-60-90 Triange$

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

$Icon for Cotangent$

Cotangent

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