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belle-belle
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can someone please help with this problem..

Differentiate arctan(2*x/(1-x^2)) with respect to x when 1 < x and simplify the result as much as possible.

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Report 8 years ago
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(Original post by belle-belle)
can someone please help with this problem..

Differentiate arctan(2*x/(1-x^2)) with respect to x when 1 < x and simplify the result as much as possible.

Thanks
 \dfrac{2x}{1-x^2} = tan(y)

EDIT: Alternatively, you could have  u =  \dfrac{2x}{1-x^2} and then use the chain rule.
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