Posted by haifeng on 2021-03-25 11:06:38 last update 2021-03-25 11:17:42 | Answers (2) | 收藏
(1)
\[ \lim_{x\rightarrow 0}\frac{\sqrt{1+\tan x}-\sqrt{1+\sin x}}{\sin x^3} \]
[Ans] $\frac{1}{4}$
(2)
\[ \lim_{x\rightarrow 0}\biggl(\frac{\sin x}{x}\biggr)^{\frac{1}{1-\cos x}} \]
