已知平面向量
,
,
,满足
,
,
且
,若对每一个确定的向量
,记
的最小值为
,则当
变化时,实数
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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2023·上海徐汇·三模 查看更多[5]
上海市南洋模范中学2023届高三三模数学试题(已下线)模块一 情境4 以平面向量为背景(已下线)模块6 平面几何篇 第2讲:向量的数量积与极化恒等式【练】上海市黄浦区格致中学2024届高三下学期开学考试数学试题(已下线)【讲】 专题一 平面向量线性运算的最值问题(压轴大全)
更新时间:2023-05-28 21:24:47
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【推荐1】已知平面内不同的三点O,A,B,满足
,若
,
的最小值为
,则
=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef9b31aa6e238fa7175c00d8b37dd3b.png)
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【推荐2】已知A,B,C,D是半径为2的圆O上的四个动点,若
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292d0b9ce587bd5df884a988c22ccba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/567c0dd42857551011425c07fb594a36.png)
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【推荐1】设点
在以
为圆心,半径为1的圆弧
上运动(包含
、
两个端点),
,且
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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【推荐2】平面向量
,满足
,则以下说法正确的有_______ (填写序号)
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382b820bd29b6a488fb00ee56df44e7d.png)
②对于平面内任一向量
,有且只有一对实数
使![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2910ce2c13bd2cbc943acf4377d57d85.png)
③设
,
,
,
,且
在
处取得最小值,当
时,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12da043354e717be38f4f29f7767b41.png)
①
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②对于平面内任一向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d491ca1d69c14de489ec68aa280c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2910ce2c13bd2cbc943acf4377d57d85.png)
③设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02207b28e6f78b3a254b1c0b2cb0ec0c.png)
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【推荐1】
中,角
所对的边分别为
,向量
,
,且
,三角函数式
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐2】已知点
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