$e^{2x}$ के विस्तार में $x^{6}$ का गुणांक क्या है?

  • A
    $\frac{2}{45}$
  • B
    $\frac{7}{45}$
  • C
    $\frac{4}{45}$
  • D
    $\frac{1}{45}$

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