1 . 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
解题方法
2 . 已知实数
、
满足
,若
恒成立,则实数
的取值范围为( )
![](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/8853daa0802e0ce2a7d838943e996797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30f0809e25b9b1fba9f178a685a6e65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 骑自行车是一种能有效改善心肺功能的耐力性有氧运动,深受大众喜爱,如图是某一自行车的平面结构示意图,已知图中的圆A(前轮),圆D(后轮)的半径均为
,
均是边长为4的等边三角形.设点P为后轮上的一点,则在骑行该自行车的过程中,
的最大值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/f0e36eb1-875c-4492-8a0d-6989d1b5a4f7.png?resizew=200)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34135082b24af4db167a04cb3aeb4ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57c81117bcf189b9e31c033a6773e2a8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/19/f0e36eb1-875c-4492-8a0d-6989d1b5a4f7.png?resizew=200)
A.![]() | B.12 | C.![]() | D.36 |
您最近一年使用:0次
名校
解题方法
4 . 如图,点
在半径为2的
上运动,
.若
,则
的最大值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/073b0ed9-8914-4ecd-9881-152ffdff95ad.png?resizew=131)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac51bffb8f476896081027b33f7ec25d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d20ef99c71c7cd26b12260ff1e00f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/073b0ed9-8914-4ecd-9881-152ffdff95ad.png?resizew=131)
A.1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-19更新
|
352次组卷
|
2卷引用:河北省张家口市第一中学2023届高三上学期期中数学试题
解题方法
5 . 已知圆
经过点
,半径为
,其圆心
的坐标为
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
满足
,点
是圆
上一动点,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e7fb75f8da26cc05c9d540a6c11eda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-03-21更新
|
415次组卷
|
2卷引用:重庆市名校联盟2022届高三下学期仿真数学(理)试题
名校
7 . 已知函数
,且
,则当
时,
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e9b9a8a64c9ec09e657066cf4b2f806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d514472461de4a019175c677e5016e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17b0033ec26789418ffe13fa677e0f6.png)
A.![]() | B.1 | C.![]() | D.2 |
您最近一年使用:0次
名校
8 . 已知“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23828b479284b89ec18486b52ff70768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dd00e2f6802c99fb624aa77ebe17d68.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2022高三·全国·专题练习
9 . 已知向量
,
,且
,
的夹角为钝角,则在平面
上,满足上述条件及
的点
所在的区域面积
满足( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846df016533fd8e9c1303ca62f309c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a66b088d69abf7eb5fe2dc880969f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560ee2894ba8c5cee6633430cc8b3b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f1a8e551cba7ec9f451749f60e628d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb6f70c26a40ac89ae3095b03dd2ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078dcf98b0f8e80ce57910dcd2ec32a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
10 . 若点
满足条件
,则点
构成图形的面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b3ef9d2a66d12cc9db15c7d6c1d5da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-11-14更新
|
234次组卷
|
2卷引用:贵州省凯里市第一中学2021-2022学年高二上学期期中考试数学(文)试题