Tìm nguyên hàm
$\int{{\sqrt{{2x-1}}dx}}.$
A. $\displaystyle -\frac{2}{3}\sqrt{{{{{(2x-1)}}^{3}}}}+C.$
B. $\displaystyle \frac{2}{3}\sqrt{{{{{(2x-1)}}^{3}}}}+C.$
C. $\displaystyle -\frac{1}{3}\sqrt{{{{{(2x-1)}}^{3}}}}+C.$
D. $\displaystyle \frac{1}{3}\sqrt{{{{{(2x-1)}}^{3}}}}+C.$