解题方法
1 . 在梯形ABCD中,
,
,
,E为
的中点,F为
上的动点(含端点),则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0e5697eca3f5205cb7b343648240bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a7ab4b30a29a8d767cfabd6cea0069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59809f2fa9ce4c833cdf5fe102feb8d8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知|
,
,
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c357efba6277c0b5e46cabeb93f7a77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b507692d26f6f38f5418a86f2b10d985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bad01658b1ef75f08bc1c28f4bc57f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b847ccdc479d753206a89eb94e37754.png)
A.2 | B.![]() | C.3 | D.4 |
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解题方法
3 . 已知单位向量
与
的夹角为
,则
( )
![](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/7d4e18b565d72e30500df8910e4d0de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
385次组卷
|
3卷引用:河北省保定市定州中学2023-2024学年高一下学期5月期中考试数学试题
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4 . 已知向量
,且
与
的夹角为
.
(1)求
和
;
(2)若向量
与
所成的角是锐角,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032fe13f2666446d08f308d23755eebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596a3ee5d8473fc6619ea7730e13325b.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba2b0627ff70b02aa16b007dc41794dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437dc907211c5934f938d869f6b19e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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|
780次组卷
|
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解题方法
5 . 已知
,
,
,
的夹角
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7f14dfa9f463d57664c640102bb5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4a5e3cb5a570878390165ff7c60fe3.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/78a40d2cf43fce0c99dff3470d554eb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da72f016bf2a7c6e50ea90b4af5d8442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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6 . 已知非零向量
,
,
满足:
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498e31243c96cee074159c14530ce929.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/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cc1f1ef9ad32eef62aefa4c3fc3d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f9df42552e714a5212708a04e160f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156cf6cd7ae0948944d53a5f3eb53bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f05d10b1b3ab120364d061534e150b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498e31243c96cee074159c14530ce929.png)
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7 . 设
,
且
的夹角为钝角,实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f485e4afe50f7e85efc3dce207cd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99204cc0147faef5556ac86e805ce74e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解题方法
8 . 已知向量
,
,
,满足
(
),且
,若
为
,
的夹角,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e21027d4c039e83e33f67cef3e82461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad52924df9291d5d191d18e09374ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffe803ace64d7cc9e7179712a7ff373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 如果
,
,
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b532ff725ed321148010644e7f0e05f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f5d2e176efcf02e085b011c35eeb4e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc23a04cdac6439ea170e799f1c1df5.png)
A.1 | B.2 | C.![]() | D.![]() |
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10 . 已知向量
,则
在
方向上的投影向量 为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a6ba2964e935a18d5df10dec50284c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:江苏省连云港市灌云县第一中学2023-2024学年高一下学期5月期中考试数学试题
江苏省连云港市灌云县第一中学2023-2024学年高一下学期5月期中考试数学试题(已下线)核心考点2 平面向量的数量积 B提升卷 (高一期末考试必考的10大核心考点)江苏省南通市海安高级中学2023-2024学年高一下学期第二次月考数学试题