摘要: 求 $\lim\limits_{x \to \infty}x-\sqrt{x^2-1}$ $$\begin{aligned} &\lim_{x \to \infty} x-\sqrt{x^2-1} \\=&\lim_{x \to \infty} \frac{\left(x-\sqrt{x^2-1}\阅读全文
posted @ 2019-02-10 14:54 KingSann 阅读(61) 评论(0)  编辑