Taylors Polynomial

[swift tartan]

I calculated the derivatives up until 5 and the respective location of f(0) in each derivate function. i plugged in my values into the formula and i have T5(x,0)= 1- (1/2)x^2+ (1/24)x^4 as result. Is this correct? If yes, how do I do the second part of the task?