解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef38a1ac93881cbc4a8ea9e029e8089.png)
![](https://img.xkw.com/dksih/QBM/2021/1/29/2646622558208000/2647442240323584/STEM/407200b8-d0ab-4c21-919c-84f72c032618.png)
(1)作出函数
的图象(直接作图,不需写出作图过程);
(2)讨论函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef38a1ac93881cbc4a8ea9e029e8089.png)
![](https://img.xkw.com/dksih/QBM/2021/1/29/2646622558208000/2647442240323584/STEM/407200b8-d0ab-4c21-919c-84f72c032618.png)
(1)作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57f500d4c617abff970fdca707ebb51.png)
您最近一年使用:0次
2021-01-30更新
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366次组卷
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3卷引用:安徽省宿州市十三所省重点中学2020-2021学年高一上学期期末数学试题
2 . 定义在R上的奇函数f(x)满足f(x+2)=-f(x),当0≤x≤1时,f(x)=x,
(1)试画出f(x),x∈[-3,5]的图象;
(2)求f(37.5);
(3)常数a∈(0,1),y=a与f(x),x∈[-3,5]的图象相交,求所有交点横坐标之和.
(1)试画出f(x),x∈[-3,5]的图象;
(2)求f(37.5);
(3)常数a∈(0,1),y=a与f(x),x∈[-3,5]的图象相交,求所有交点横坐标之和.
您最近一年使用:0次
解题方法
3 . 已知
为定义在
上的奇函数,当
时,
为二次函数,且满足
在
上的两个零点分别为1和3.
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572809699778560/1572809705750528/STEM/7aa30c4cddeb4dea872af0a1f306d4b0.png?resizew=232)
(1)求函数
在
上的解析式;
(2)作出
的图象,并根据图象讨论关于
的方程
根的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4bbbe1dfa56e17fddf15506797c69a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572809699778560/1572809705750528/STEM/7aa30c4cddeb4dea872af0a1f306d4b0.png?resizew=232)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(2)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcb4e2f31fdc612440240d44d866d19.png)
您最近一年使用:0次