Google
Câu hỏi: Nguyên hàm của hàm số $f\left( x \right)=\dfrac{2}{4x+3}$ là:
A. $\int{\dfrac{2}{4x+3}\text{d}x}=2\ln \left| 4x+3 \right|+C$.
B. $\int{\dfrac{2}{4x+3}\text{d}x}=\dfrac{1}{2}\ln \left| 4x+3 \right|+C$.
C. $\int{\dfrac{2}{4x+3}\text{d}x}=\dfrac{1}{4}\ln \left| 4x+3 \right|+C$.
D. $\int{\dfrac{2}{4x+3}\text{d}x}=2\ln \left| 2x+\dfrac{3}{2} \right|+C$.
A. $\int{\dfrac{2}{4x+3}\text{d}x}=2\ln \left| 4x+3 \right|+C$.
B. $\int{\dfrac{2}{4x+3}\text{d}x}=\dfrac{1}{2}\ln \left| 4x+3 \right|+C$.
C. $\int{\dfrac{2}{4x+3}\text{d}x}=\dfrac{1}{4}\ln \left| 4x+3 \right|+C$.
D. $\int{\dfrac{2}{4x+3}\text{d}x}=2\ln \left| 2x+\dfrac{3}{2} \right|+C$.
Ta có: $\int{\dfrac{2}{4x+3}dx}=\dfrac{1}{2}\ln \left| 4x+3 \right|+C$.
Đáp án B.