જો $y^{\cos x}=x^{\sin y}$ હોય, તો $\frac{d y}{d x}=$

  • A
    $\frac{y(\sin y+x \sin x \log y)}{x(\cos x-y \log x \cos y)}$
  • B
    $\frac{y(x \sin x \log x-\sin y)}{x(\cos x+y \log x \cos y)}$
  • C
    $\frac{y(\sin y-x \log y)}{x(x-y \cos y(\log x))}$
  • D
    $\frac{y(\sin y+x \log y)}{x(x+y \cos y(\log x))}$

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