名校
1 . 在平面直角坐标系中,
为坐标原点,
三点满足
.
(1)求证:
三点共线;
(2)已知
,
的最小值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7453d507d0c0c7c10d5f73dca6dceb5d.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311995bf3e561f255d947b8a75ca0d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f18c358e515979c5eea9a6617ebc151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2018-04-25更新
|
791次组卷
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7卷引用:2014-2015学年浙江省台州市书生中学高一下学期起始考数学试卷
2 . 已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e524c2988704ecc0d41cc9607b4c1c64.png)
(1)若
,求证:
;
(2)若向量
共线,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e524c2988704ecc0d41cc9607b4c1c64.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6778e27ec765abb44b3eeb0f80e20d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb58883caf5c8ca1e94389839d294b6.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e225297418ba60d303578d96116f2e22.png)
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2018-02-27更新
|
783次组卷
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4卷引用:江苏省扬州市2017~2018学年度高一第一学期期末调研测试数学试题
江苏省扬州市2017~2018学年度高一第一学期期末调研测试数学试题安徽省滁州市新锐学校2019-2020学年高二上学期期末数学试题(已下线)6.3.2 平面向量数量积的坐标表示(精讲)-2020-2021学年高一数学一隅三反系列(人教A版2019必修第二册)福建省南平市2022-2023学年高一下学期期末数学冲刺卷试题(三)
名校
3 . 在平面直角坐标系中,O为坐标原点,A、B、C三点满足
.
求证:A、B、C三点共线;
已知
、
,
,
的最小值为5,求实数m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431d15b80cc65e037b35bc10bd8d45e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6611c73064bda197766c00b448dd0030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f8c513fdf6f75cdd4f441e35ecfc04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a848eab8a7cd5094a8dc37f9b91f38b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26a39a25091e39b138526e12a3937872.png)
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2018-03-02更新
|
1939次组卷
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9卷引用:北京101中学2017-2018学年高一上学期期末考试数学试题
4 . 如图,平行四边形ABCD中,点M在AB的延长线上,且BM=
AB,点N在BC上,且BN=
BC.求证:M、N、D三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://img.xkw.com/dksih/QBM/2018/2/21/1887073718788096/1890074568851456/STEM/eb1b66842beb4bdb8e9ab4704e4b0fb2.png?resizew=172)
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名校
5 . 设
不共线,且
.
(1)若
,求证:
三点共线;
(2)若
三点共线,问:
是否为定值?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870621330877caa08df79df91fc4ff4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1ba5acc2c716d8a3d36de3b6a3ca87.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c0ec201ece369cea29b016bdfe50bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
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2018-01-06更新
|
837次组卷
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5卷引用:江苏省南通市海安高级中学2016-2017学年高一下学期期末考试数学试题
江苏省南通市海安高级中学2016-2017学年高一下学期期末考试数学试题(已下线)2017-2018学年第一学期期末复习备考之精准复习模拟题高一江苏版数学试题(A卷)人教B版(2019) 必修第二册 过关斩将 第六章 6.2.1 向量基本定理沪教版(2020) 必修第二册 同步跟踪练习 第8章 平面向量 8.3.1平面向量的分解定理沪教版(2020) 必修第二册 同步跟踪练习 第8章 8.3.1 向量基本定理
6 . 已知四点A(-3,1),B(-1,-2),C(2,0),D(
)
(1)求证:
;
(2)
,求实数m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a40b2cc217b6bdadb5e03037a5c51e.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f292d11d9f5fc1a5e04118fb7de8a881.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7dee8948e9ecf898ebbeab9193de889.png)
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2017-10-18更新
|
633次组卷
|
3卷引用:福建省福州市2015-2016学年高一下学期期末质量检测数学试题
13-14高一下·湖南长沙·期中
名校
7 . 在平面直角坐标系中,
为坐标原点,
三点满足
.
(1)求证:
三点共线;
(2)求
的值;
(3)已知
,
的最小值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f81983d4745fe5bb69c1da13e36dd92.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf5bfb21cecf0851e5e78e0d036d32d.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50fa39ecb42f9ebef0503cb8d330c6d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ae1d3222e2c82e0cfc79938ed1e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8b4bbd2f9912adfc9864c0e1e76a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2017-06-23更新
|
987次组卷
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4卷引用:2013-2014学年湖南省浏阳一中高一下学期期中考试数学试卷
(已下线)2013-2014学年湖南省浏阳一中高一下学期期中考试数学试卷(已下线)2013-2014学年湖南省浏阳一中高一下学期期中数学试卷江苏省苏州市2016-2017学年高一下学期期末备考试题分类汇编:平面向量中的最值问题探究数学试题辽宁省朝阳市建平县实验中学2020-2021学年高一下学期期末数学试题
8 . 已知
为原点,
、
、
为平面内的三点.求证:
(1)若
、
、
三点共线,则存在实数
、
,且
,使得
;
(2)若存在实数
、
,且
,使得
,则
、
、
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3999cdc37dd36b630ccfd72bd36e9f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0faa9202451fe5a08989ba3637ac16.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3999cdc37dd36b630ccfd72bd36e9f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0faa9202451fe5a08989ba3637ac16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
9 . 已知点
,向量
(Ⅰ)若点
在第二象限,求实数
的取值范围
(Ⅱ)若
,判断四边形
的形状,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3aedb0b8ce3795205139452f20efa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49df0464fb63c768400537b7be9d6691.png)
(Ⅰ)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de6c989fd224866658230526892e2bcb.png)
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10 . 设向量
的夹角为
且
如果![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311b2cfca599bd42d92380e24c5b0e41.png)
(1)证明:
三点共线.
(2)试确定实数
的值,使
的取值满足向量
与向量
垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1238a7a8ce9db1a47ae0ac80d5ed70cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bf2423499d45354dbc8377f1f04e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbeda011b023f86d0cdb0cb8873c5580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311b2cfca599bd42d92380e24c5b0e41.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65183d238c9bc2be73770717d890683.png)
(2)试确定实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4740f5cb397b07da27fe5cc91ec6b6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0f2ea9d9ee7dcbfef19f8106b1934d.png)
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2017-05-03更新
|
732次组卷
|
6卷引用:山东省淄博市实验中学、高青一中2016-2017学年高一下学第一次模块考试(期中)数学试题