$\int \frac{\tan x}{\cos x(\sec x-1)(\sec x-2)} d x=$ . . . . . . $+c$

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

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