trig

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Last updated 11:38 AM on 8/7/26
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4 Terms

1
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cosine function definition

The cosine function (\(\cos \)) is defined in a right triangle as the ratio of the length of the adjacent side to the length of the hypotenuse (\(\cos \theta = \text{adjacent} / \text{hypotenuse}\)). On a unit circle, it represents the x-coordinate of a point corresponding to a given angle.

2
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tan definition

x

3
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sin

x

4
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unit circle

x