as in the title

how do i differentiate arctan(x) ten times

i have to show each differential, is that even possible, i got up to f'''', but then it just goes mental, is there a simpler way of doing it, or an trig identity i dont noe of.

thanks

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- December 9th 2012, 06:35 AMnewkidzhow do i differentiate 1/(1+x^2) ten times
as in the title

how do i differentiate arctan(x) ten times

i have to show each differential, is that even possible, i got up to f'''', but then it just goes mental, is there a simpler way of doing it, or an trig identity i dont noe of.

thanks - December 9th 2012, 07:16 AMskeeterRe: how do i differentiate 1/(1+x^2) ten times