名校
解题方法
1 . 函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c669198fbd7094758d628b088cd5f9.png)
(1)若a=1,求f(x)的单调区间;
(2)记M(a)为f(x)的最小值,当
时,求a的值;
(3)记
,
,当a≤0时,若
且
,求b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c669198fbd7094758d628b088cd5f9.png)
(1)若a=1,求f(x)的单调区间;
(2)记M(a)为f(x)的最小值,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270f6114a317c7b6394716e9bd2e805c.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a3d1c3ad4e09b4a9b7ef14b0010f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf3ccda7e66d76bc660c1c1ae6318ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52854d0ead4737302f4b4706e1f80553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
您最近一年使用:0次
名校
解题方法
2 . 若方程x2+mx+n=0(m,n∈R)有两个不相等的实数根
,且
.
(1)求证:m2=4n+4;
(2)若m≤-4,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4d57bdb85ad21a427ebc3126fab41ed.png)
(1)求证:m2=4n+4;
(2)若m≤-4,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1453e108c520c1f191668d7609dbd5fb.png)
您最近一年使用:0次
2021-11-19更新
|
297次组卷
|
4卷引用:山西省大同市2021-2022学年高一上学期期中数学试题
解题方法
3 . 已知二次函数
.
(1)求函数的单调区间和最小值;
(2)若函数
满足 ( 从条件①、条件②这两个条件中选择一个作为已知),求
的取值范围.(注意:只选一个,若两个都选,按选择①给分)
条件①:在区间
上是单调函数;
条件②:
,函数值
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cf7725d7aaa096569bc799dae32beeb.png)
(1)求函数的单调区间和最小值;
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
条件①:在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1458a711347e0d5dd7cd238310daba9f.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498e3adf968f5d0a0756874a1764dfbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
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解题方法
4 . 二次项系数为
的二次函数
满足
,其图象与
轴的两个不同交点分别为
,
与
轴交于点
.
(1)当
,
,
不共线时,求实数
的取值范围;
(2)在(1)的条件下,求经过
,
,
的圆
的方程;并判断圆
是否经过定点?若是,请求出定点坐标;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0778b0ca91abc0d97e4401bdc7bcf04e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac8cdda4f66904b6e2676689c40dbde.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)在(1)的条件下,求经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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名校
5 . 如图,点P是以AB为直径的圆O上动点,
是点P关于AB的对称点,AB=2a(a>0).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/22e64769-cc92-475b-930d-fa3b1d07a603.png?resizew=190)
(I)当点P是弧
上靠近B的三等分点时,求
的值;
(II)求
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/22e64769-cc92-475b-930d-fa3b1d07a603.png?resizew=190)
(I)当点P是弧
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a9c27ea53c6748e4a788b7400f25a4.png)
(II)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51df36a3d935e330b0121faef73f06c.png)
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2021-07-24更新
|
281次组卷
|
3卷引用:北京市第一六一中学2020-2021学年高一下学期期中阶段练习数学试题
北京市第一六一中学2020-2021学年高一下学期期中阶段练习数学试题北京市第十五中学2020-2021学年高一下学期期中考试数学试题(已下线)专题07 直线和圆的方程综合练习-(新教材)2020-2021学年高二数学单元复习(人教A版选择性必修第一册)