Let y = 1 - cos x / 1 + cosx
Show that dy/dx = t+t^3 , where t = tan(x/2)
Follow Math Help Forum on Facebook and Google+
Probably easiest to get y in terms of half x right away, using
Then simplify using Pythag,
Its it possible that you mean (1- cos(x))/(1+ cos(x))?
View Tag Cloud