$\int {\frac{{\cot x \tan x}}{{{{\sec }^2}x - 1}}} \;dx = $

  • A
    $\cot x - x + c$
  • B
    $ - \cot x + x + c$
  • C
    $\cot x + x + c$
  • D
    $ - \cot x - x + c$

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