Update 2024-03-01-数学学习.md

nooblong · Mar 9, 2024 · ff48e1c · ff48e1c
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@@ -110,3 +110,8 @@ $\forall x \exist x$
 
 ![image-20240308165330223](img/2024-03-01-%E6%95%B0%E5%AD%A6%E5%AD%A6%E4%B9%A0/image-20240308165330223.png)
 
+### 无穷小与无穷大
+
+#### 例1：lim x->0 x sin(1/x) = 0
+
+ sin(1/x)有界，有界乘以趋于0的就是0