cant't do this trig question (2 Viewers)

[K@LLo]

[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.

 

[lolokay]

have you typed that out correctly?

 

[lyounamu]

have you typed that out correctly?

Lol. That question is un-decodable.

 

[midifile]

[cos(n-1)(x)

Is that n meant to be an A?

 

[Aerath]

Try scanning the question.

 

[12o9]

Try scanning the question.

Somebody likes scanning things all of a sudden xD.

 

[K@LLo]

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.