名校
解题方法
1 . 设正n边形的边长为1,顶点依次为
,若存在点P满足
,且
,则n的最大值为__________ .(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252bab154aa5bdc9b4bce4c0d43aaf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/470c98bbdfd975f85036bdd48e59d92e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e071a13edd9a57280b7aeeeac704dfdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56606e332e4578c9435fcccb4067260.png)
您最近一年使用:0次
2023高二·全国·专题练习
解题方法
2 . 向量数量积的性质
设
都是非零向量,
是与
方向相同的单位向量,
是
与
的夹角,则:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de036bea844c72f426254d91b6c14c98.png)
_____ ;(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d5b4c0999a3a66ef0c49086c402599.png)
_____ ;(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
_____ ;(4)
.
设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c984376f5475184e0d3e4f7e1bb65f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de036bea844c72f426254d91b6c14c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d5b4c0999a3a66ef0c49086c402599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7910c1188483bdcdd3bec00c5ab4ea04.png)
您最近一年使用:0次
3 . 设
,
,
,
,
是一组平面向量,记
,若向量
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae3e7b4da62e064dc4afc758834ad3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c831a7bd74a6ee2776f76b774c4fecd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb7afa22369cf1ba281623b7b99c5ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819d065f000538b7f61abd23307ff516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a868d7ab435f06d015dc5dee1803723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f0aada669072fbe7c61a50d06c1a6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
您最近一年使用:0次
2022-03-09更新
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419次组卷
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3卷引用:5.2 平面向量的数量积及坐标运算(精练)-【一隅三反】2023年高考数学一轮复习(基础版)(新高考地区专用)
(已下线)5.2 平面向量的数量积及坐标运算(精练)-【一隅三反】2023年高考数学一轮复习(基础版)(新高考地区专用)重庆市第十八中学2023届高三下学期二月开学检测数学试题广东省茂名市五校联盟2022届高三下学期第三次联考数学试题