[(sin(3x) + cos(3x))/(cos(x)-sin(x))] = 1 + 2sin2x
i've been working on this for along time and still cannot prove it.
Since you've been working on this for some time, you've got some work you can show. Please reply with that, so we can see where you are. (You might be nearly to the solution!)[(sin(3x) + cos(3x))/(cos(x)-sin(x))] = 1 + 2sin2x
i've been working on this for along time and still cannot prove it.