11. 证明下列极限不存在.
Posted by haifeng on 2023-03-17 22:39:05 last update 2023-03-17 22:39:05 | Answers (1) | 收藏
1.
$\lim\limits_{(x,y)\rightarrow(0,0)}\frac{x+y}{x-y}$
Posted by haifeng on 2023-03-17 22:39:05 last update 2023-03-17 22:39:05 | Answers (1) | 收藏
1.
$\lim\limits_{(x,y)\rightarrow(0,0)}\frac{x+y}{x-y}$
Posted by haifeng on 2023-03-17 22:33:20 last update 2023-03-17 22:35:04 | Answers (1) | 收藏
1. $\lim\limits_{(x,y)\rightarrow(0,0)}\frac{xy}{\sqrt{4+3xy}-2}$