已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad93710bf1bb70aa7655dec3290c17ad.png)
(1)函数
的零点为_______ ;
(2)函数
的零点个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad93710bf1bb70aa7655dec3290c17ad.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59079b8a040b76af47fd9ac635eaddf3.png)
更新时间:2021-01-15 15:57:27
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【知识点】 求函数零点或方程根的个数
相似题推荐
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐1】关于函数
有下述四个结论:
①
是偶函数;
②
的最大值为
;
③
在
有
个零点;
④
在区间
单调递增;
⑤
是周期为
的函数.
其中所有正确结论的编号是_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10276e1f4d5b7c84bb1633f2f76478f4.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af46e7742b81527867de26c973c67b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01dc2d99655cf7598837cb0886166ed.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
其中所有正确结论的编号是
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐2】设函数
若
,则函数
的零点个数有_________ 个.
![](https://img.xkw.com/dksih/QBM/2014/10/23/1571882336714752/1571882342277120/STEM/b9c8d1960bf04294885a9eb68da1dc86.png?resizew=168)
![](https://img.xkw.com/dksih/QBM/2014/10/23/1571882336714752/1571882342277120/STEM/0563ec360b1f446a89303775838698c9.png?resizew=92)
![](https://img.xkw.com/dksih/QBM/2014/10/23/1571882336714752/1571882342277120/STEM/b1d51088583c4c158a5cd7312bcbc8ba.png?resizew=132)
您最近一年使用:0次