Cho hàm số y = f(x)

A

- Hướng dẫn giải

Đáp án A

$\begin{array}{l}\underset{1}{\overset{5}{\int }}f\text{'}\left(x\right)dx=\underset{1}{\overset{5}{\int }}\frac{1}{2x-1}dx=\frac{1}{2}.\ln \left|2x-1\right|\left|\begin{array}{l}5\\ 1\end{array}\right.\\ =\frac{1}{2}\ln 9=f\left(5\right)-f\left(1\right)\\ \Rightarrow f\left(5\right)=\frac{1}{2}\ln 9+1=\ln 3+1\end{array}$