નિરીક્ષણની રીત દ્વારા વિધેય $\sin 2x - 4e^{3x}$ નું પ્રતિ-વિકલિત (અથવા સંકલિત) શોધો.

  • A
    $-\frac{1}{2} \cos 2x - \frac{4}{3} e^{3x}$
  • B
    $-\frac{1}{2} \cos 2x + \frac{4}{3} e^{3x}$
  • C
    $\frac{1}{2} \cos 2x - \frac{4}{3} e^{3x}$
  • D
    $\frac{1}{2} \cos 2x + \frac{4}{3} e^{3x}$

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