$x$ के सापेक्ष $e^{3x} \sin 4x$ का अवकलज क्या है?

  • A
    $5 e^{3x} \sin \left(4x + \tan^{-1} \frac{4}{3}\right)$
  • B
    $5 e^{3x} \sin \left(4x - \tan^{-1} \frac{4}{3}\right)$
  • C
    $5 e^{3x} \sin \left(4x + \tan^{-1} \frac{3}{4}\right)$
  • D
    $5 e^{3x} \sin \left(4x - \tan^{-1} \frac{3}{4}\right)$

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