1003109905

Level: 
Project ID: 
1003109905
Accepted: 
1
Clonable: 
0
Easy: 
0
Choose the proper expression to expand \( \sqrt{x-5}-\sqrt x \) when evaluating the limit \( \lim\limits_{x\to\infty}⁡\!\left(\sqrt{x-5}-\sqrt x-1 \right) \).
\( \frac{\sqrt{x-5}+\sqrt x}{\sqrt{x-5}+\sqrt x} \)
\( \frac{\sqrt{x-5}+\sqrt x+1}{\sqrt{x-5}+\sqrt x+1 } \)
\( \frac{\sqrt{x+5}+\sqrt x}{\sqrt{x+5}+\sqrt x} \)
\( \frac{\sqrt{x-5}}{\sqrt{x-5}} \)
\( \frac{\sqrt{x-5}+\sqrt x-1}{\sqrt{x-5}+\sqrt x-1} \)