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Math Help - how do i differentiate 1/(1+x^2) ten times

  1. #1
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    how 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
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  2. #2
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    Re: how do i differentiate 1/(1+x^2) ten times

    Quote Originally Posted by newkidz View Post
    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
    Note that this post is part of an assessment question posted earlier in the calculus forum ...
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