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Geometry 4 Online
OpenStudy (alexnavarro):

Which of the following ratios correctly describes the cosine function?

OpenStudy (mjdennis):

None of them, until you post them here.

OpenStudy (mjdennis):

Sorry, silly joke. Please be aware that you have only posted half your question.

OpenStudy (mathmale):

Weren't there answer choices? If you're in trig it's essential that you learn and remember the definitions of the basic trig functions. The top 3 are the sine, the cosine and the tangent. How are those defined in terms of the names of the 3 sides of a right triangle? It'd also help you considerably to learn the definitions of the cotangent, secant and cosecant.

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