$\Large\int \frac {dx}{x-X^3}=$ $$(a)\;\frac{1}{2}log \frac{x^2}{1-x^2}\qquad (b)\;\frac{1}{2}log \frac{1-x^2}{x^2}\qquad(c)\;log \frac{(1-x)}{x(1+x)}\qquad(d)\;log x(1-x^2)$$

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