$\int \frac{x}{\left(1-x^2\right) \sqrt{2-x^2}} d x=$

  • A
    $\frac{1}{\sqrt{2}} \log \left|\frac{\sqrt{2-x^2}-\sqrt{2}}{\sqrt{2-x^2}+\sqrt{2}}\right|+c$
  • B
    $\frac{1}{2} \log \left|\frac{\sqrt{2-x^2}-1}{\sqrt{2-x^2}+1}\right|+c$
  • C
    $\frac{1}{2} \log \left|\frac{1+\sqrt{2-x^2}}{1-\sqrt{2-x^2}}\right|+c$
  • D
    $\log \left|\frac{1-x^2}{\sqrt{2-x^2}}\right|+c$

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