Tính \(I=\int\limits_{0}^{1}{{{e}^{3x}}dx}\).

Câu hỏi: Tính \(I=\int\limits_{0}^{1}{{{e}^{3x}}dx}\).

A \(I=e-1\).                                 

B  \(I={{e}^{3}}-1\).                            

C \(\frac{{{e}^{3}}-1}{3}\).                           

D  \({{e}^{3}}+\frac{1}{2}\).