`f(x) = x/(x + c/x)` Differentiate.

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balajia | College Teacher | (Level 1) eNoter

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`f(x)=x^2/(x^2+c)`

`f'(x)=(2x(x^2+c)-2x(x^2))/(x^2+c)^2`

`f'(x)=(2x^3+2cx-2x^3)/(x^2+c)^2`

`f'(x)=(2cx)/(x^2+c)^2`

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