Hi guys, I need some help with a question from the IB HL maths papers.
Not sure how this works:
Sin(2n+1)xcosx - cos(2n+1)xsinx = sin(2n+1)x - x = sin 2nx
Could some1 show me more detailed steps or give me some hints on how equation holds?
Hi guys, I need some help with a question from the IB HL maths papers.
Not sure how this works:
Sin(2n+1)xcosx - cos(2n+1)xsinx = sin(2n+1)x - x = sin 2nx
Could some1 show me more detailed steps or give me some hints on how equation holds?