$\begin{aligned} & \int \frac{dx}{(2 \sin x+\sec x)^4}=A(1+\tan x)^{-5} \\ & +B(1+\tan x)^{-6}+C(1+\tan x)^{-7}+k, \text{ तो } \\ & A+B+C= \end{aligned}$

  • A
    $\frac{-86}{105}$
  • B
    $\frac{-1}{105}$
  • C
    $\frac{-26}{105}$
  • D
    $\frac{-16}{105}$

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