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OpenStudy (anonymous):
If cscx=-5 and tan x>0, then x must lie in which quadrant
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OpenStudy (anonymous):
I believe its the 3rd quadrant. Because Tan is x>0 in the 1st and the third quadrant. Also csc is x<0 in the 3rd quadrant.
OpenStudy (anonymous):
ok that is what i got.. how do I do this problem.. Find the value of the expression: sin(arc cos 8/17)
OpenStudy (anonymous):
I'm not familiar with arc's.
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