解题方法
1 . 如图,在
中,
,
为线段
上的动点,
与
相交于点
,设
,
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f5b4deea408acb22a418f5401aa61d.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475ab01eb1221e8d4bb283d57a2f7194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f6d00ec735622a5f9c5c9304383666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52e5f5b9b0d1e198186679153203087.png)
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2 . 已知向量
,且
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b517d5fda1c7254dfb75e4ee033d1d9.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c38060a440b4dcf442c40253f12876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b517d5fda1c7254dfb75e4ee033d1d9.png)
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3 . 在
中,
为
的中点,
在边
上,
交
于
,且
,设
.
表示
;
(2)
,求
;
(3)若
在
上,且
设
,若
,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba29f3df04bc84f5056c94f88969a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c8910ac8e00642a2ff50cf0272fd33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd5844deaa2a8cdda9477bcbf76c459.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71da232ec4e1f0c809c5b0a1c281aa8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbbc1135c4740fba0fbe05a4198bf813.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5e19562bf0b7f47fa50b428d4c9f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec706b0f536f88f3c8838357d2b57334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5610dc0acc42d3c5e5c60847842f7254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83aea85a77d138e986608ad5dc38fcbd.png)
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解题方法
4 . 已知向量
,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f6be725bc2be28f5a3983e10bfeefc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0635dd7654629ef1dc976c116aa17dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04082154fe19c91078a95c1ee219ff93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c1bbdd632e3d014a4aeecd1c2061ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
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|
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3卷引用:山东省枣庄市第三中学2023-2024学年高一下学期3月质量检测考试数学试题
解题方法
5 . 已知非零向量
和
不共线,若
与
共线,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2db7ad8352a03337aff3b97ac70064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e76aac7e958243796e40f070a5fe3407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2024高三·全国·专题练习
解题方法
6 . 直线l上有不同的三点A,B,C,O是直线l外一点,对于向量
(
是锐角)总成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac2478ad5060ad1b844dcd74f662b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
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解题方法
7 . 如图,在
中,
,
为
上一点,且
,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8fc167275fdc049c8777831522b7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da18267294924c440b4a5e1d08dd928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c44fdd1d10a0d3cdf70a12a685180b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83b9f01e806bf74042ba41b26423022.png)
A.![]() | B.5 | C.![]() | D.![]() |
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|
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2卷引用:山东省德州市夏津县第一中学2023-2024学年高一下学期3月月考数学试题
解题方法
8 . 已知非零向量
不共线.
(1)如果
,求证:A,B,D三点共线;
(2)若
和
是方向相反的两个向量,试确定实数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57171576d823479d2ac6e647077d1ced.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75d6886724cfe164028aa4d151aa98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51dbf7fb9e71618bf5031f91c8d86b23.png)
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解题方法
9 . 在等腰梯形ABCD中,
,
,
,
,
,动点E,F分别在线段BC和DC上(不包含端点),AE和BD交于点M,且
,
.
(1)用向量
,
表示向量
,
;
(2)求
的取值范围;
(3)是否存在点E,使得
.若存在,求λ;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d03acb29a5812acad760d564d6c84be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe419cc85c1801f6f1e9ec1d2682865.png)
(1)用向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304a7f07db2ec637baadf8f0ab91c85c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d021a5c98388463d577675e58068aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c3accb1b8a5479439beff4259660e3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7042c22468919ac8279ee70f25bd716.png)
(3)是否存在点E,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0063b15ff38b206337b587935ada99f0.png)
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|
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2卷引用:山东省聊城一中2023-2024学年下学期期中考试高一数学试题
名校
解题方法
10 . 已知
,
,
.
(1)求
:
(2)当实数k为何值时,
与
垂直?
(3)若
不共线,
与
反向,求实数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29276b43a2950ed71f0f9629a35dfa74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff265969988f1f138700129e5d7a6d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb90e6d4963eb75e1d279c04c8bb03c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93af88a7628c71d642d3a6df067c15f5.png)
(2)当实数k为何值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2175d2455f0825cd4ed7bfb05654a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437dc907211c5934f938d869f6b19e93.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0035fcdc6a2dfb5836f4dc93dcaf9386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8664f0d5cf26775736d4ed0ff63eae58.png)
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