Write down the Taylor series for tan x about the point 0. Also write down a precise remainder term Rn(x). finding this much harder than the Taylor series for cos x, arctan x about the point 0.
stuck in this problem from our tutorial sheet of course MA105
You can use long division to divide the Maclaurin expansions of sin(x) over cos(x)
https://www.youtube.com/watch?v=ET3qjWs7g7w This guy explains it in 5mins