यदि $\int \frac{1+\cos 8 x}{\tan 2 x-\cot 2 x} d x=f(x) \cdot \cos (g(x))+c$ है, तो $f\left(\frac{1}{4}\right)+g\left(\frac{1}{4}\right)=$

  • A
    $2$
  • B
    $\frac{17}{8}$
  • C
    $\frac{15}{8}$
  • D
    $\frac{33}{16}$

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यदि $\int \frac{a \cos x-2 \sin x}{b \sin x+5 \cos x} d x=\frac{7}{41} x+\frac{22}{41} \log |b \sin x+5 \cos x|+C, (a>0, b>0)$, तो $\int \frac{d x}{b+a \cos x}=$

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