1 . 某社区要建一个矩形活动场所(如图),其中
为矩形,
为正方形,若场所周长为360米,设
米,场所面积为
平方米,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/b01cdf78-9232-477a-8b56-f527ee228068.png?resizew=164)
(1)写出
关于
的函数关系式,并指出
的取值范围.
(2)求
的最大值及
取得最大值时
的取值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6240d4cf0fb44aa1e6bdaf2a4bdfb37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7a3d679b4dae63575903387a76ce45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/b01cdf78-9232-477a-8b56-f527ee228068.png?resizew=164)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2 . 已知函数
,
.
(1)若
,求实数x的取值范围;
(2)对任意
存在
使
,求实数b的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea366268bda7a58cace1afb754b18788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fcb26d57959872f2cbda469d86ec97b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e0be553100fd62053f7d8e4082d9c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404202ec4cd0d2fd0e0f677663844524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
(1)求关于
的不等式
的解集;
(2)若关于
的不等式
的解集包含集合
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ee7dce8bd605b835fb90940587aa6b.png)
(1)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b562ca77fa64f3ebe40e0ad49833d5.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7806ff79ccef0540d505bd30af6d5f2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2022-07-15更新
|
255次组卷
|
2卷引用:广西河池市2021-2022学年高二下学期期末考试数学(理)试题
名校
4 . 已知函数
,其中a为实数.
(1)若
的最小值为1,求a的值;
(2)若
的解集包含集合
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0132217bf4ae6312f9daaf9517c043ad.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e629b11a715a3aa0e1fc956682d231d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d51d9c50590e4f4484e7558ecd38c5f3.png)
您最近一年使用:0次
2022-03-29更新
|
176次组卷
|
2卷引用:广西河池市2021-2022学年高二下学期八校第二次联考数学(文)试题
解题方法
5 . 已知不等式
的解集为
.
(1)求
和
的值;
(2)当
,
取(1)中数值时,若一元二次不等式
的解集为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb56d9418f1a3cb2baa6b0c862010ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186513fce115d874444e41ae28f846d9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c183cdbde8b7845f15e6ed5b85258c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
,函数
.
(1)当
时,求不等式
的解集;
(2)若函数
的图象恒在函数
图象的上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd65345dec765bd06d1d9e7e8900a67e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae9fe6dab2ec2ea8d67b765f1ff48d8.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-07-30更新
|
292次组卷
|
8卷引用:广西河池市2020-2021学年高二下学期期末数学(理)试题
解题方法
7 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b21d3c305ff3a48baa2bf8bef46979.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64831d66b64c0125dbc386ffc7744fb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/904caee5239c84d0396fb87cbc8e8043.png)
您最近一年使用:0次
2021-01-17更新
|
82次组卷
|
4卷引用:广西河池市2020-2021学年高三上学期期末数学(理)试题