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Mathematics 15 Online
OpenStudy (anonymous):

Find cos θ if sin θ =- 5/13 and tan θ > 0.

OpenStudy (anonymous):

Actually, in which of the four quadrants is tangent positive?

OpenStudy (dls):

|dw:1360939368996:dw| cos theta = base/hypotenuse

OpenStudy (dls):

the numerical value i guess u can find from that diagram,for sign conventions,you have all the required info..tan theta>0 i.e +ve u know which quadrant is +ve for tan? which is ALSO -ve for sin?

OpenStudy (anonymous):

@PeterPan in Q1 and Q3?

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