What are cos & sin?

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asked Aug 19, 2018 136k views

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AlexDenisov · Answer 1 · 2018-08-23T18:26:11+0000

cosine, cos, is the ratio of the side length adjacent to an angle to the length of the hypotenuse.

Sine, sin, is the ratio of the side length opposite an angle to the length of the hypotenuse.

What are cos & sin?

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