$\mathop {\lim }\limits_{x \to 0} \frac{{{4^x} - {9^x}}}{{x({4^x} + {9^x})}} = $

  • A
    $\log \left( {\frac{2}{3}} \right)$
  • B
    $\frac{1}{2}\log \left( {\frac{3}{2}} \right)$
  • C
    $\frac{1}{2}\log \left( {\frac{2}{3}} \right)$
  • D
    $\log \left( {\frac{3}{2}} \right)$

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