解题方法
1 . 已知函数
,若关于
的方程
有4个不同的解,
,其中
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4682de800665cf4d5f6f466d623bcdae.png)
__________ ,
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c9177d2af51adfd0c902d9bd6991b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4682de800665cf4d5f6f466d623bcdae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0cc9610b53a3bf4d2cdd05cab5168e.png)
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2 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d04d73c5b02fc71dabeec66648fc1601.png)
__________ ;函数
,函数
有6个零点,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef991442b4acfbe5729f0b6d1ad410a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d04d73c5b02fc71dabeec66648fc1601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617bf410f27eb06190d8229919f15117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
3 . 设
,
,用
表示
,
中较小者,记为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e87a624e6ee96471c0bf19830d33b15b.png)
______ ;若方程
恰有三个不同的实数解,则实数c的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330d61bc0eac3bb6e1a8aefb73ac171e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc553aae4ea766484647410ac110437b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f169611259ea1cc39fd5894d46a4ba81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e87a624e6ee96471c0bf19830d33b15b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91eb8ba1ca85c26bd7c78e4ee05fd8d.png)
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2023-11-29更新
|
473次组卷
|
3卷引用:山东省烟台市2023-2024学年高一上学期期中数学试题
山东省烟台市2023-2024学年高一上学期期中数学试题(已下线)【第三课】4.5.1函数的零点与方程的解 4.5.2用二分法求方程的近似解广东省华南师范大学附属中学2023-2024学年高一上学期期末数学试题
4 . 设常数
,函数
.若方程
有三个不相等的实数根
,且
,则
的取值范围为__________ ,
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef8174aeb63387c6c2bab1f00718752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f0057213e0ccd359864481632b6fd7.png)
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5 . 已知函数
的图象与直线
有4个交点,且这4个交点的横坐标分别为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d9dc2cd66d0dba117f440fe65ab747.png)
________ ,
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61886621afda249bed6529d5e1fc5dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d624433033be999f6073a20225b33bfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2d4d7ccd61172d021423109eba962f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1d9dc2cd66d0dba117f440fe65ab747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10b44b4ec497f9ab80d0dddde35d7d2.png)
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解题方法
6 . 函数f(x)=
,直线y=b与f(x)的图像四个交点的横坐标从左到右依次为x1,x2,x3,x4,则x1+x2=______ ,
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ddb5ff82a8dc546950f0aba96692d37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3d41be26be9622d0cbc9825778b362.png)
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解题方法
7 . 已知函数
的图像过点
,则
在区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
_________ 零点(填“有”或“无”);且函数
有三个零点,实数
是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e1b4e695bc49109248d26f1282d080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87d495f802e3b3e7b8020eb38c82f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5b9f57d3634f8337f1414f8a2a2dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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8 . 已知函数
若方程
恰有三个不同的实数根
,则
的取值范围是__________ ,
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d643076007ce2a7687010b41eb618ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e951460587680b4ca5cafaa22d6478b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcee20976de0e0e8c1ccd7a951674691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad5a68210556128977efafe33bed892.png)
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2023-02-03更新
|
185次组卷
|
2卷引用:山西省朔州市2022-2023学年高一上学期12月月考数学试题
9 . 已知函数
,若函数
有四个不同的零点
,则实数
的取值范围是________ ,设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871f6d4038d89a0252407a630614edfd.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddb02adf7d7b3383b2af4424e8dbe0bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515c9627aa8fefb32173342f0a9a574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871f6d4038d89a0252407a630614edfd.png)
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2022-12-21更新
|
249次组卷
|
2卷引用:山东省泰安市肥城市第一高级中学2022-2023学年高一上学期12月月考数学试题
10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e7fcc97dbe01a53bd9fe2e12388c14.png)
(1)函数
的值域是____________ .
(2)若关于x的方程
恰有两个互异的实数解,则a的取值范围是______________ -.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e7fcc97dbe01a53bd9fe2e12388c14.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b7b336d46b00dbabf9a572788ced94.png)
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2022-09-29更新
|
429次组卷
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3卷引用:北京市中国农业大学附属中学2021-2022学年高一上学期期中学业水平测试数学试题