$\int \frac{\cos x+x \sin x}{x(x+\cos x)} d x=$

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

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