find the anti-derivative of :(adsbygoogle = window.adsbygoogle || []).push({});

f(x) = 4 - 3(1+x^2)^(-1)

I have thought this question for hours....but no clue at all....

that is what I have attempted:

F(x) = 4x - 3 Ln(1 + x^2) ....

but if i differentiated it ---

then I got F'(x) = 4 - 3*(2x)/(1 + x^2).....

is there anyway to eliminate the (2x) ...?

please help

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# Homework Help: Anti-derivative problem help

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