\(\lim \frac{{\sqrt {2{n^2} + 1} }}{{3 + n}}\) bằn...

Câu hỏi: \(\lim \frac{{\sqrt {2{n^2} + 1} }}{{3 + n}}\) bằng 

A. \(\sqrt 2 \)

B. \(\frac{2}{3}\)

C. \( - \frac{1}{2}\)

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