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OpenStudy (anonymous):
find the value of cos (7pi/2)
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OpenStudy (anonymous):
cos7(90)
OpenStudy (anonymous):
cos=0
OpenStudy (mikurout):
0
OpenStudy (anonymous):
i have also done that .i dontknow whether it is?
OpenStudy (anonymous):
|dw:1406805343596:dw|
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