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1 . 如图,在矩形
中,
,
,点
为边
的中点,点
在边
上.
为线段
上靠近
的三等分点,求
的值;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e6f0e94393fc6bbd9b4b83ede534ac.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e6f0e94393fc6bbd9b4b83ede534ac.png)
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5卷引用:浙江省培优联盟2023-2024学年高一下学期5月联考数学试题
浙江省培优联盟2023-2024学年高一下学期5月联考数学试题(已下线)专题01 平面向量(1)-期末考点大串讲(苏教版(2019))(已下线)核心考点2 平面向量的数量积 A基础卷 (高一期末考试必考的10大核心考点)安徽省阜阳市第三中学2023-2024学年高一下学期第二次调研(期中)数学试题(已下线)【高一模块二】类型1 以平面向量为背景的解答题(A卷基础卷)
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解题方法
2 . 在日常生活中,我们会看到如图所示的情境,两个人共提一个行李包,假设行李包所受重力为
,作用在行李包上的两个拉力分别为
,且
,
与
的夹角为
,下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a27fdbf25481e59e904a6b5ddc0f8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589dc0a5d5638e9b5e84821f21da54ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0ede82b2725ebbefd3a8265d182403.png)
![](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/c24095e409b025db711f14be783a406c.png)
A.![]() ![]() | B.![]() ![]() |
C.当![]() ![]() | D.当![]() ![]() |
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解题方法
3 . 已知向量
,且
.
(1)求
的值;
(2)若向量
与
互相垂直,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f522c500acdc1b748b1508ba9bb2ef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee28850ce3c6ec52e812c7aab898b22.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb6118172f384a565afcdfd84e9cdb0.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40436543cc51f42b5b5d93e55a407ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff01c3e3b53271c5d16ad4e02a930ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
4 . 已知向量
,
满足
,
,且
与
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67142c672f4ce0b994c1d7d444a2b47.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/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b311957e153c4ebb3c77fbd58e3a7e.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/76dde16b05fba6fc61779511e63f34fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67142c672f4ce0b994c1d7d444a2b47.png)
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解题方法
5 . 已知向量
满足
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd91fd0818516ea4763c1567079151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2224f5f5991428f75b4ea3b559e4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
A.-2 | B.![]() | C.![]() | D.6 |
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6 . 已知平面向量
,
均为单位向量,若
,则向量
,
的夹角
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37564ec4e9e92485f1769e8ffaac31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef80f82aa7094a106e91faec6493b1f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37564ec4e9e92485f1769e8ffaac31d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba77bce6ee231457e37639d961442f4e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
7 . 已知
是单位向量,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f275a75246b5be5cf179f81267d53f1.png)
在
上的投影向量为
,则
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc64abe49847ade9b78678ba1f8e0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f275a75246b5be5cf179f81267d53f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/169143072a2c2a0ea7062d65735de1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc64abe49847ade9b78678ba1f8e0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a250997f723ab4ccff9d91e0d810fed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc64abe49847ade9b78678ba1f8e0e2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
8 . 已知
是单位向量,
,则
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978b03b4f123be830afcb90b4073bd96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5caab7e4f2c696139a078175bbae7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知向量
,
,
,若
与
的夹角为
,且
⊥
,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca8284c833f7766754d15809b3879d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd738a9c0d92e69b26a7a8b40ae668e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80882fa22c23c7195dbb1cee9d5db5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ab7024f73ff0cb7e6a48197538a91e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
10 . 下列说法正确的有( )
A.若复数![]() ![]() ![]() ![]() |
B.若复数![]() ![]() ![]() ![]() |
C.若向量![]() ![]() ![]() ![]() |
D.若复数![]() ![]() ![]() |
您最近一年使用:0次
7日内更新
|
123次组卷
|
2卷引用:湖北省襄阳市第四中学2024届高三下学期高考最后一次数学测试题