1 . 已知向量
满足
,且
,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a321112ae2829a4783f7e4a1f022183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b8e5f74789e48c0518d340233cc513b.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . 已知
分别为
的边
上的点,线段
和
相交于点
,若
,
,
,其中
.则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be878f5bdce9a3e9939a4ae743c803b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1174877b02d3c54c58314fa7cd1218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83463cbe4e6b434ce448c053cae70ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761e8ff96c96ac26682b521288a01bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c227da7ad9d24ae3e3740febf9f293.png)
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名校
3 . 已知
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d025445b09b8f1b65f7cfd48c86838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c83bf5caa2be6db7dcdb91eee688fa9.png)
A.![]() | B.4 | C.6 | D.![]() |
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解题方法
4 . 已知O是
所在平面内一点,且
,
,
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42083f00cd68320e4e0275400c139551.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8533b7d67a3d95340a8462819680367f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98db0299f88f80030e8b01debb45d8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
A. ![]() | B. ![]() | C.![]() | D.![]() |
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解题方法
5 . 在平面直角坐标系
中,已知直线
:
与圆
:
交于
两点,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da08d6d27b6cf7ee1a9f49737bbb70de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a324c816e299f545ba3f31d37544d07d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a704469569b68ee11ab166dba3f686f0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 已知向量
,设
与
的夹角为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f3e2a2f3cc082f8ced307cf6486310.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/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4b363797455e171e5dff9193eb28cc9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 已知向量
,
,若
与
垂直,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7e6b95167f61e355deda5a36ebbcfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80c98050dc40a726f0acb7f7bd54591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2ce4f096ae2ffcfa5f5dfc6bdca590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6fbff85947f4df50ae1b17e967a158.png)
A.![]() | B.![]() | C.3 | D.6 |
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8 . 设
为平面内的任意两个向量,定义一种向量运算“
”:
对于同一平面内的向量
,给出下列结论:
①
;②
;
③
;④若
是单位向量,则
.
以上所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29264166dd8f7d01fc7450f8fe56a291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b412d3054ea69685032f777669e41e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be40b04c18a099e2a838cdb9090b4cd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4eaefbb9be6e5e836644cfbe0301573.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84086ac125c9f1a0504ac37ab0e6dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc64abe49847ade9b78678ba1f8e0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/603ec2875cdda99123a21c7340fad3eb.png)
以上所有正确结论的序号是
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9 .
中,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe89e08beb475318e0c7d5a87a8712f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e4e3219e8964f05b817dbd060c3628.png)
A.54 | B.27 | C.9 | D.![]() |
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名校
解题方法
10 . 已知点
,点
为原点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d54bcff5ffecbd3e4dea284d273638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8840adf41cb679f98b8bcb81ef4afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8731c539ba9ecf87f2fd501b77fbef.png)
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4卷引用:陕西省西安市第一中学2024届高三第十六次模拟考试数学(文科)试题