ધારો કે $I = \int_{\pi / 4}^{\pi / 3} \frac{\sin x}{x} dx$. તો

  • A
    $\frac{1}{2} \leq I \leq 1$
  • B
    $4 \leq I \leq 2 \sqrt{30}$
  • C
    $\frac{\sqrt{3}}{8} \leq I \leq \frac{\sqrt{2}}{6}$
  • D
    $1 \leq I \leq \frac{2 \sqrt{3}}{\sqrt{2}}$

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