cant't do this trig question (1 Viewer)

K@LLo

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[sin(A + 1)(x) + 2sinA(x) + sin(A - 1)(x)] / [cos(n-1)(x) - cos(A + 1)(x) - cos(A + 1)(x) = cot(x/2)

I have no idea how to do it.
 

K@LLo

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2009
lol sorry for late reply i was at world youth day on saturday and sunday was heaps fun.

Ok the question i posted is question 62 in exercises 21(c) of 3unit fitz patrick. If you take a look, the question is very long and confusing.

:)
 

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