यदि $\int \frac{5 \tan x}{\tan x-2} \, dx = x + a \log |\sin x - 2 \cos x| + c$ (जहाँ $c$ समाकलन का एक स्थिरांक है),तो $a$ का मान ज्ञात कीजिए।

  • A
    $1$
  • B
    $\frac{1}{2}$
  • C
    $2$
  • D
    $3$

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