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OpenStudy (anonymous):
Find sin(2u), if tan u=2/3; pi
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OpenStudy (anonymous):
@Danglbet from tanu = 2/3 can u determine the value of sin u and cos u?
OpenStudy (anonymous):
@niksva I think so is sinu=2 and cosu=3?
OpenStudy (anonymous):
no tanu = perpendicular/base ( of a right angled triangle)|dw:1362597406234:dw|
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