Cho \(f(x)=\dfrac{2-3x}{5x-1}\) thì \(f\left( x \r...

Câu hỏi: Cho \(f(x)=\dfrac{2-3x}{5x-1}\) thì \(f\left( x \right)>0\) khi

A. \(\dfrac{1}{5}

B. \(\dfrac{1}{5}\le x\le \dfrac{2}{3}.\)

C. \(x\le \dfrac{1}{5}\vee x\ge \dfrac{2}{3}.\)

D. \(x\le \dfrac{1}{5}\vee x\ge \dfrac{2}{3}.\)