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OpenStudy (anonymous):
Use even and odd properties of the trigonometric functions to find the exact value of the expression. csc (-pi/6)
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OpenStudy (anonymous):
you know csc is 1/sin, right? and sin is odd function
OpenStudy (anonymous):
so csc is also odd, then it will be obvious to find the answer
OpenStudy (anonymous):
would it be 2 or -2?
OpenStudy (anonymous):
-2, since f(-x)=-f(x), you may take out the - sign first and then calculate
OpenStudy (anonymous):
thank you
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OpenStudy (anonymous):
medal...
OpenStudy (dumbcow):
its -2 ... unit circle will really help you with this http://en.wikipedia.org/wiki/File:Unit_circle_angles_color.svg
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