Cho \(L = \mathop {\lim }\limits_{x \to 1} \frac{{...

Câu hỏi: Cho \(L = \mathop {\lim }\limits_{x \to 1} \frac{{2{x^2} - 3x + 1}}{{1 - {x^2}}}\). Khi đó

A. \(L = \frac{1}{4}\)

B. \(L =  - \frac{1}{2}\)

C. \(L =  - \frac{1}{4}\)

D. \(L = \frac{1}{2}\)