名校
解题方法
1 . 设实数
满足约束条件
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7daf735b2849140b0d82681ca8a8b288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee51b0cac927e6445e4b94438c2ff3da.png)
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2024-04-24更新
|
327次组卷
|
3卷引用:陕西省西安市第一中学等校2023-2024学年高三下学期4月阶段性测试文科数学试题
2 . 已知实数
、
满足
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efce13006e1392b3749247715f9c314c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 小明有50元钱去买水果,他发现如果买1kg阳光玫瑰和750g涌泉密桔则钱不够,若买1.2kg阳光玫瑰和400g涌泉蜜桔则钱有余,设800g阳光玫瑰与1.4kg涌泉蜜桔的价格分别为
,
(单位:元),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
4 . 若
,
满足约束条件
则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1f284628f5eef3b3a9b816a132d818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
2023-11-23更新
|
107次组卷
|
2卷引用:四川省雅安市雅安市联考2023-2024学年高三上学期期中考试数学(理)试题
名校
5 . 已知直线
,点
、
,设
,
,以下选项中命题都正确的为( )
(1)若
,则线段
的中点在直线
上
(2)若
,则直线
与直线
平行
(3)若
,则点
、
分布在直线
的两侧
(4)若
,则直线
与线段
的延长线相交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29fa0e0526598c4140789f6328daac9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8198c3b302b3820e86763428eb1e91cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3463ced6030af957f13f9ba05b977c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af9c7138572896a62c1d1ae6646f92d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa6619a865a4666603bda1d1fc8accc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1a418fe5bae31329e486ef3d1a26b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf0539fad2893915a17b67233be8cdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b90106d3e686cadf37eebecf57dfaee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5fcfc55b56f04ac530871067e5ce71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/904de2dd00f6ee5c194731e6c251ef24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
A.(1)(2)(3) | B.(2)(3)(4) | C.(1)(3)(4) | D.(1)(2)(3)(4) |
您最近一年使用:0次
名校
解题方法
6 . 若
,
满足约束条件
,则
最小值为_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6eb0ab02ef91d2b4e332fdebc486e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd9501fbed946e7c667f2fc73cc626f0.png)
您最近一年使用:0次
2023-11-18更新
|
281次组卷
|
3卷引用:四川省成都市石室中学2023-2024学年高三上学期期中考试理科数学试卷
名校
7 . 已知圆
与两条坐标都不相交,圆心
在
轴上,圆
与直线
及直线
均相切.
(1)求圆
的方程.
(2)若过点
的直线
被圆
所截得的弦长为
,求直线
的方程.
(3)已知实数
、
满足圆
的方程,求
的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/5ae8c4a0ddd3b192da7c2d3bca9946a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8b515c0b57767af60c121f89277af2.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326bc9e52fc6ec8f9ad4bcb248ede114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)已知实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a78668f4a544a47795eb2f9c751ce75.png)
您最近一年使用:0次
名校
8 . 已知
,
,若
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d38a6a0c359ca025d93cbcf8caa965e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8fc2202e1373b50bb275a50abb56b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-10-31更新
|
601次组卷
|
3卷引用:北京市昌平区首都师范大学附属中学昌平学校2023-2024学年高二上学期期中考试试数学试题
北京市昌平区首都师范大学附属中学昌平学校2023-2024学年高二上学期期中考试试数学试题福建省莆田第五中学2023-2024学年高二上学期期中考试数学试题(已下线)广东省佛山市南海区桂城中学2023-2024学年高二上学期11月月考数学试题
9 . 设
满足约束条件
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83af7e4bd824cd8d9bf713540b58f0be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd5865e05b1dadba340b6b60efaa89a.png)
您最近一年使用:0次
名校
解题方法
10 . 已知在R上的减函数
,若不等式
成立,函数
的图象关于点
中心对称,则当
时,
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96621b1aa4b41ed274748f3895f70c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c3dd8fa2dc8c0c7e255bfb054ad34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6ad6387d592102a743742620eee7fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916bb2cc1b29574ff95b47567c59ee0c.png)
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