I've tried a lot of things, but I don't get it. (NOT a physics/math student)
I get this:
4cos(θ)^3 - 4cos(θ)
But it should be sin(θ) since I'm applying this formula:
and the solution for 1,1 is Sqrt(3/8π) e^((+/-)iφ) * sin(θ)
I get how the part in italics is derived, but not how the part...