MCQ

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$\int \frac{\cos x+x \sin x}{x^2+x \cos x} dx =$

• A
  l$og|x^2 + x \cos x| + c$
• B
  $\left.|\log | \frac{x \sin x}{x+\cos x} \right\rvert\,+ c$
• ✓
  $\log \left|\frac{x}{x+\cos x}\right|+ c$
• D
  $\log |\cos x + x \sin x| + c$