$\int e^{4x}(\sin 3x - \cos 3x) dx = $

  • A
    $\frac{e^{4x}}{25}(7 \sin 3x - \cos 3x) + c$
  • B
    $\frac{e^{4x}}{25}(\sin 3x - 7 \cos 3x) + c$
  • C
    $\frac{e^{4x}}{5}(7 \sin 3x + \cos 3x) + c$
  • D
    $\frac{e^{4x}}{5}(\sin 3x + 7 \cos 3x) + c$

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