જો $f(x)=\frac{(x+1) \sinh x}{e^{2 x} \tan x}$ અને $\frac{f^{\prime}(x)}{f(x)}=\frac{1}{x+1}+\operatorname{coth} x+g(x)$ હોય, તો $g(x)=$

  • A
    $-2+\frac{1}{\sin x \cos x}$
  • B
    $2-2 \operatorname{cosec} 2 x$
  • C
    $-2(1+\operatorname{cosec} 2 x)$
  • D
    $2-\frac{1}{\sin x \cos x}$

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જો $x^y=y^{\sin x}(\tan x)^{\cos x}$ હોય, તો $\left(\log x-\frac{\sin x}{y}\right) \frac{d y}{d x}=$

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