Level:
Project ID:
1003109904
Accepted:
1
Clonable:
0
Easy:
0
Choose the proper expression to expand \( \sqrt{x^2-2}-x \) when evaluating the limit \( \lim\limits_{x\to\infty}\!\left(\sqrt{x^2-2}-x+1\right) \).
\( \frac{\sqrt{x^2-2}+x}{\sqrt{x^2-2}+x} \)
\( \frac{\sqrt{x^2-2}-x}{\sqrt{x^2-2}-x} \)
\( \frac{\sqrt{x^2-2}}{\sqrt{x^2-2}} \)
\( \frac{\sqrt{x^2+2}+x}{\sqrt{x^2+2}+x} \)