Okay, so I have a function defined like this:

f(x) = x^2 / (1 - cos x), when x is not 0

f(0) = 2

I'm supposed to find Maclaurin series for this, but I can't figure out how I should do it. All derivatives in the point x=0 have the value 0, so I'm only left with 2 + 0 + 0 + 0...

I really doubt that this is the answer I'm looking for.