$\int_0^{\pi / 4} \frac{\sec x}{3 \cos x+4 \sin x} d x=$

  • A
    $\log \left(\frac{7}{3}\right)$
  • B
    $\frac{1}{4} \log \left(\frac{7}{3}\right)$
  • C
    $\frac{1}{4} \log 7$
  • D
    $\log 7$

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