यदि $y=\log _{10} x+\log _x 10+\log _x x+\log _{10} 10$ है,तो $\frac{d y}{d x}=$

  • A
    $\frac{1}{x \log _e 10}+\frac{1}{x \log _{10} e}$
  • B
    $\frac{1}{x \log _e 10}-\frac{\log _e 10}{x(\log _e x)^2}$
  • C
    $\frac{1}{x \log _e 10}+\frac{1}{x \log _{10} x}$
  • D
    $\frac{1}{x \log _e 10}-\frac{\log _e 10}{x(\log _{10} x)^2}$

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