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OpenStudy (anonymous):
find the following 1. sin(-5pi/4)
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OpenStudy (raden):
hint : sin(-a) = -sin(a)
OpenStudy (anonymous):
Do you know how to find the sin of pi/4?
OpenStudy (anonymous):
First work that out, then think about which quadrant it will be in if it is -5pi/4. CA ST
OpenStudy (anonymous):
|dw:1349927280918:dw|
OpenStudy (anonymous):
|dw:1349927341552:dw|
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