Tìm \(\mathop {\lim }\limits_{x \to 1} \frac{{\sqr...

Câu hỏi: Tìm \(\mathop {\lim }\limits_{x \to 1} \frac{{\sqrt[3]{{x + 7}} - \sqrt {{x^2} + x + 2} }}{{x - 1}}?\)

A. \(\frac{1}{{12}}\)

B. \( + \infty \)

C. \(\frac{{ - 3}}{2}\)

D. \(\frac{{ - 2}}{3}\)