$\int \frac{d x}{\cos (x+4) \cos (x+2)}$ का मान ज्ञात कीजिए।

  • A
    $\frac{1}{\sin 2} \log \left|\cos (x+4)^2\right|+C$
  • B
    $\frac{1}{2} \log \left|\frac{\sec (x+2)}{\sec (x+4)}\right|+C$
  • C
    $\frac{1}{\sin 2} \log \left|\frac{\sec (x+4)}{\sec (x+2)}\right|+C$
  • D
    $\log \left|\frac{\sec (x+4)}{\sec (x+2)}\right|+C$

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