名校
1 . 在平面直角坐标系
中,已知P是圆
上的动点,若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0749142e1d5c8f5b3fb8996643559af7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9805a0cb9e8b7b6a6d50c3cbeb273493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3cc88a956e5e4805a1ebaf7a0e91ce.png)
A.12 | B.8 | C.6 | D.4 |
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2024-03-24更新
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637次组卷
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2卷引用:北京市海淀区人大附中2024届高三下学期统练2(3月月考)数学试题
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解题方法
2 . 已知正方形ABCD的边长为1,若点E是AB边上的中点,则
的值为__________ ,若点E是AB边上的动点,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb8ed6dea92be9acadae22d93e3c5ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8300645430707b0ef92c3d2e0ba0bf4.png)
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2023-05-28更新
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2卷引用:北京市第十一中学2023届高三三模(5月)数学试题
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3 . 已知两个力
,
的夹角为直角,且已知它们的合力
与
的夹角为
,
,则
的大小为__________ N.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e7d4bc85cf95d858b6d3051e5beff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/809f928a25b77674be3116e2e79e6c65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f120d1660cf97c64d01e699f92faa80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/809f928a25b77674be3116e2e79e6c65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5361ca602a3159fec8edc5647e25a31f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/809f928a25b77674be3116e2e79e6c65.png)
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2023-03-19更新
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3卷引用:北京市朝阳区东北师范大学附属中学朝阳学校2022-2023学年高一下学期3月月考数学试题
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4 . 已知向量
,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ ;若
与
的夹角为钝角,则
的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a08ed47d6563ffa369eec7374cccffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165f910a08822b71a4c73e8f4a159e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571bbe3e4cd85e64fa8ef0baae39fe6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c619311cad1b26c913cabde234cf2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4卷引用:北京市广渠门中学2023届高三上学期10月月考数学试题
5 . 已知
,
,能说明“存在
、
,使得
对任意
恒成立”是真命题的一组
,
的值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd2664a7767c6a381555e5e06309015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a26a08d52b515b32952942e7daab94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27afde1f5c77102f35e4d6325de353ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e36c9c91220b0f2cbd4a48e8fa90e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ca3f0a4b2d06539e74594736881aaa.png)
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6 . 已知等边
的边长为2,D为边BC的中点,点
是
边上的动点,则
的最大值为______________ ,最小值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78eec18cf9f61601e34bf2d833f8a96.png)
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2021-07-04更新
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4卷引用:北京市日坛中学2023-2024学年高一下学期4月月考数学试题
北京市日坛中学2023-2024学年高一下学期4月月考数学试题北京市朝阳区2020-2021学年高一下学期期末考试数学试题北京市第二十七中学2022-2023学年高一下学期期中调研数学试题(已下线)第八章 向量专练3—最值问题(1)-2022届高三数学一轮复习