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OpenStudy (lucaz):
the terminal side of an angle theta is in quadrant II if tan(theta)= -5/3 what is cos(theta)?
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OpenStudy (lucaz):
@Mertsj can you help here?
OpenStudy (mertsj):
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OpenStudy (mertsj):
Use the Pythagorean Theorem to find the hypotenuse. Then use the fact that cos = side adjacent over hypotenuse to find the cosine. Remember, cosine is like x and is therefore negative in the second quadrant.
OpenStudy (lucaz):
alright, thank you!
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