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Mathematics 8 Online
OpenStudy (anonymous):

Find the values of the six trigonometric functions if possible. 1.) cos(x) = -5/8. x lies in quadrant II.

OpenStudy (campbell_st):

draw a 2nd quadrant diagram |dw:1380145954418:dw| find b using pythagoras' theorem then you have all 3 sides of the triangle. now you can find all the trig ratios you need

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