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OpenStudy (anonymous):
If tanθ < 0 and cosθ = -(4/5), find sinθ
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OpenStudy (mathmale):
Are you familiar with the following rules? a) All 6 of the trig functions are positive in quadrant 1. b) the sine and csc are positive in quadrant 2. c) .... d) ... If so, please complete this list of rules.
OpenStudy (anonymous):
c) Tan and Cot are positive in Quadrant III d) Cos and Sec and positive in Quadrant IV not sure about the other two. I might know them just not that they are part of the rules :P
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