Nguyên hàm của hàm số \(f\left( x \right) = \sqrt[3]{{3x + 1}}\) là:
A. \(\int {f\left( x \right)dx} = \left( {3x + 1} \right)\sqrt[3]{{3x + 1}} + C\)
B. \(\int {f\left( x \right)dx} = \frac{1}{3}\sqrt[3]{{3x + 1}} + C\)
C. \(\int {f\left( x \right)dx} = \frac{1}{4}\left( {3x + 1} \right)\sqrt[3]{{3x + 1}} + C\)
D. \(\int {f\left( x \right)dx} = \sqrt[3]{{3x + 1}} + C\)
A. \(\int {f\left( x \right)dx} = \left( {3x + 1} \right)\sqrt[3]{{3x + 1}} + C\)
B. \(\int {f\left( x \right)dx} = \frac{1}{3}\sqrt[3]{{3x + 1}} + C\)
C. \(\int {f\left( x \right)dx} = \frac{1}{4}\left( {3x + 1} \right)\sqrt[3]{{3x + 1}} + C\)
D. \(\int {f\left( x \right)dx} = \sqrt[3]{{3x + 1}} + C\)