Q
quynh_1996


Tính giới hạn:
[TEX] \lim_{x\to+\infty} (\sqrt{x + \sqrt{x + \sqrt{x}}} - \sqrt{x - \sqrt{x - \sqrt{x}}})[/TEX]
[TEX] \lim_{x\to+\infty} (\sqrt{x + \sqrt{x + \sqrt{x}}} - \sqrt{x - \sqrt{x - \sqrt{x}}})[/TEX]