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Mathematics 19 Online
OpenStudy (anonymous):

I have exam tomorrow, Could someone please explain how i should show that this equation is correct ? (sin3v+sinv)/(cos3v+cosv) = tan2v

OpenStudy (anonymous):

Is that sin 3v or sin^3 v

OpenStudy (anonymous):

It's 3v, Please help me if you know how to do it.

OpenStudy (anonymous):

You have to manipulate the left handside using sin (A-B), cos (A-B)

OpenStudy (anonymous):

Do you know the triple angle identity?

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