2023高一下·上海·专题练习
解题方法
1 . 已知
,
,且
,则
点的坐标是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc69a40908bb7d490e038d2742d83c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22924a3c487c5a1b5dee2a39a0aa9bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd11cd9057a3ebbdc8bfc4ed7383dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2 . 已知向量
,
.
(1)求
的坐标及
;
(2)若
与
共线,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ef4988b025cdf296ea81d7ef05f404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88a1983547e8f6d13e5f7f1cb521dec.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83c5803cc8c05849028a57c4bd4ee72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c75a15198f2465863fd46e0794d0bf2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afae9db82464afb37d387f6cbedc8139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a202857500b73bfc9db59b990363d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2024-01-16更新
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1448次组卷
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4卷引用:河南省安阳市龙安高级中学2022-2023学年高一下学期3月月考数学试卷
河南省安阳市龙安高级中学2022-2023学年高一下学期3月月考数学试卷辽宁省大连市2023-2024学年高一上学期期末考试数学试卷(已下线)第9章:平面向量章末检测卷-【寒假自学课】(苏教版2019)山东省潍坊市高密市第一中学2023-2024学年高一下学期4月竞赛(月考)数学试题
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3 . 若点
,
,则向量
的坐标是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dab74e16403e8131f9f5b2a74f3a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d930d43b00f267fcc926d3cdb10bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
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2023高一下·上海·专题练习
4 . 已知
中,过重心
的直线
交线段
于
,交线段
于
,连结
并延长交
于点
,设
的面积为
,
的面积为
,
.
表示
,并证明
为定值;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4212a1a4e0970ff5d38e3a64d77d701e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31b896f635de0605dfb4a51af40a79c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538c1a9e933bc1e29d785eeda9cd1abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e62ba44cbfec6823ebc1f0c7457fb.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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2023高一下·上海·专题练习
5 . 已知一个物体在三个力
,
,
的作用下,处于静止状态,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e687aeb19cffe044c9e5973ddeb7a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/835d874376ca14bdc4594d90d4355182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8136e8bf2bde87aba070b76e3a3196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e77c8d5001f95295076f67c04c38d09.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 在
中,
为
边上一点,设
.
(1)若
,试用
,
的线性组合表示
;
(2)若
,且
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73556f3870c2f38afafb4c1821cdb56.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304a7f07db2ec637baadf8f0ab91c85c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc0f23e79770ac886bf6c4f5937d0dc.png)
您最近一年使用:0次
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解题方法
7 . 已知向量
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d769ab21af5365d3c00dc617375ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50cbcb57d6e476999b862da63181f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076559f08d17fb25e82886e791719e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.2 | B.![]() | C.3 | D.![]() |
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8 . 已知
,则下面说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ea54e04eaca05da790353dd6d71859.png)
A.A点的坐标是![]() | B.当A是原点时,B点的坐标是![]() |
C.当![]() ![]() | D.![]() ![]() |
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9 . 在
中,点
分别在边
和边
上,且
,
,
交
于点
,设
.
,求实数
;
(2)试用
表示
;
(3)点
在边
上,且满足
三点共线,试确定点
的位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59802bde1dc59ba9000157b08463b2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fbc3a1f1e848cf1349b9327be8607d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01aea49f667df1a5a7f80ea98a91cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea5d9e54e2909dff93a6b5b2dea99215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)试用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb371bd7728c6d6a16533a93924ad998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471ac0f42d01c6d6e094b63628586e4d.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ef4277dfbfb3528fc1babcf523ef80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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10 . 在①
,②
,③
这三个条件中任选一个,补充在下面的问题中,并解答问题.
在锐角
中,内角A,B,C的对边分别为a,b,c,且_________.
(1)求A;
(2)若
,求线段AD长的最大值.
注:如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7e3b1833df64d27e5c37b353532e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b28c70b171460aa60f1b91db7c6f1c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540df67f69c8db2f5777daf770836734.png)
在锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc2ca8305b4d4c5c28ad5e1b1dbdfe4.png)
注:如果选择多个条件分别解答,按第一个解答计分.
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