$\int \frac{d x}{(\sin x+\cos x)(2 \cos x+\sin x)} = $

  • A
    $\log |\sin x+\cos x|+c$
  • B
    $\log \left|\frac{\tan x+2}{\tan x+1}\right|+c$
  • C
    $\log \left|\frac{\sin x+\cos x}{2 \cos x-\sin x}\right|+c$
  • D
    $\log \left|\frac{\tan x+1}{\tan x+2}\right|+c$

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