यदि $f(x)=3^x$ और $g(x)=4^x$ है,तो $\frac{f^{\prime}(0)-g^{\prime}(0)}{1+f^{\prime}(0) g^{\prime}(0)}$ का मान क्या है?

  • A
    $\frac{\log \left(\frac{3}{4}\right)}{1+(\log 3)(\log 4)}$
  • B
    $\frac{\log \left(\frac{3}{4}\right)}{1+\log 12}$
  • C
    $\frac{\log 12}{1+\log 12}$
  • D
    $\frac{\log \left(\frac{3}{4}\right)}{1-\log 12}$

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