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OpenStudy (anonymous):
When sin x=-8/17 and x lies in Quadrant III, cos y=-4/5 and y lies in Quadrant II; how do you find cos x and sin y?
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OpenStudy (anonymous):
sin^2(x) + cos^2 (x) =1 =>........
OpenStudy (saifoo.khan):
|dw:1333512245240:dw|Something like that?
OpenStudy (anonymous):
Solving algebraically....
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