Cho hàm số

Câu hỏi: Cho hàm số $f\left(x\right)=\frac{1}{2x-1}$. Tính $f\text{'}\text{'}\left(-1\right)$ .

A. $f\text{'}\text{'}\left(-1\right)=-\frac{8}{27}$

B. $f\text{'}\text{'}\left(-1\right)=\frac{2}{9}$

C. $f\text{'}\text{'}\left(-1\right)=\frac{8}{27}$

D. $f\text{'}\text{'}\left(-1\right)=-\frac{4}{27}$