如图所示,已知矩形ABCD中,
,AC与MN相交于点E.
![](https://img.xkw.com/dksih/QBM/2022/5/20/2983589792866304/2988967888175104/STEM/ec3e4a1a-ea5b-4972-9354-bfcd88cad468.png?resizew=181)
(1)若
,求
和
的值;
(2)用向量
表示
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc70f128bc2aa063a48e8ce993adf470.png)
![](https://img.xkw.com/dksih/QBM/2022/5/20/2983589792866304/2988967888175104/STEM/ec3e4a1a-ea5b-4972-9354-bfcd88cad468.png?resizew=181)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaff4898c3939d308960fb46d2fc8393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
(2)用向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c964115940609bd786e059c43e46f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd0cecf5c102254b9755e42a80c3948.png)
21-22高一下·山东潍坊·期中 查看更多[6]
山东省潍坊市2021-2022学年高一下学期5月优秀生测试数学试题(已下线)第02讲 平面向量基本定理及坐标表示 (精练)-2023年高考数学一轮复习讲练测(新教材新高考)(已下线)第02讲 平面向量基本定理及坐标表示 (精讲)-2023年高考数学一轮复习讲练测(新教材新高考)(已下线)6.3.4 平面向量数乘运算的坐标表示(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)浙江省宁波市宁海海亮高级中学2022-2023学年高一(7-14班)下学期第一次月考数学试题(B)山东省临沂市第二十四中学2022-2023学年高一下学期6月月考数学试题
更新时间:2022-05-28 08:53:38
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适中
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【推荐2】已知点
.
(1)求
;
(2)若点M满足
,求M的坐标;
(3)若点N满足
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e78adec1f9a4e6882670bcf724e1b5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ace585d3cc2e113a0927cdf9e56756a.png)
(2)若点M满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca8c0f28d04b5e1decfaa4f6db5533b.png)
(3)若点N满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09bd6af26686d06f71f009920ecd42dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a57595e73fca65e7a78f93d05edc72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d491ca1d69c14de489ec68aa280c97.png)
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【推荐3】在平面直角坐标系
中,已知向量
,
,
,且
.
(1)求
与
间的关系;
(2)若
,求
与
的值及四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abbf578d924a986f296f911a4f181e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07824c1c51be0abe1328481db3c31c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b1dcdd09ea40f400b09e28093488f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7a239e680a42107e1e47400f03b165.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8331536918d7378331be6f47a61882e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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解题方法
【推荐1】已知点A(x,0),B(2x,1),C(2,x),D(6,2x).
(1)求实数x的值,使向量
共线;
(2)当向量
共线时,点A,B,C,D是否在一条直线上?
(1)求实数x的值,使向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39df67384d5bc03635e97e88eb61d0c3.png)
(2)当向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39df67384d5bc03635e97e88eb61d0c3.png)
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【推荐2】在平面直角坐标系中,已知
.
(1)若
为
轴上的一动点,点
.
①当
三点共线时,求点
的坐标;
②求
的最小值﹔
(2)若
,且
与
的夹角
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460eee7d0ef10dd9ede83425f2fcd1b1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994dea7b53dc23d9c8c88fc60467f695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f40491031bbd97ddfbc679b90606cd.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60a5e8aba17298e58c47597abcdb36d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3509e7425887b1d4a82cd18c11a8037a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b6ca0f2e3bb000479a56da48d7b030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00490134f8caa9cc28910fb1aaff85e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a1b3d5f4068fbcba6e4b47971d51a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b014cbf8e456d20a822b5a6d5c4e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐3】已知
,
,
(t∈R),O是坐标原点.
(1)若点A,B,M三点共线,求t的值;
(2)当t取何值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f884ba1b19bd0ea2b9ab6dab0258c1.png)
取到最小值?并求出最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acd53bd8d7c7e858eddf33707d9cddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4c7b367339bb12081627d051a5cb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3a49840423b41322c94938bf445b28.png)
(1)若点A,B,M三点共线,求t的值;
(2)当t取何值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f884ba1b19bd0ea2b9ab6dab0258c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c7b3cee85a36590b89d6bcd318c2bf.png)
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【推荐1】如图,
、
分别是
的边
、
上的点,且
,
,
交
于
.
![](https://img.xkw.com/dksih/QBM/2020/2/12/2396994581577728/2398358845997056/STEM/66d559b489ce4d7ba7b7e674079bd13a.png?resizew=202)
(1)若
,求
的值;
(2)若
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/c3f52da6dd8113f1ce52cc4288736ad1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b950b124167d1af47da0a4939622fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2020/2/12/2396994581577728/2398358845997056/STEM/66d559b489ce4d7ba7b7e674079bd13a.png?resizew=202)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f250bac7806ae0f5f4823b471b8041db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7502eee6f33e8c940dec63ab6473c52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a601b138fbf5f9d579d15e92fdf07c3.png)
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【推荐2】定理:如图,已知P为
内一点,则有
.
已知点
在
内部,有以下四个推论:
①若
为
的重心,则
;
②若
为
的外心,则
;
③若
为
的内心,则
;备注:若
为
的内心,则
也对.
④若
为
的垂心,则
.
试用“奔驰定理”或其它方法解决下列问题.
(1)点
在
内部,满足
,求
的值;
(2)点
为
内一点,若
,设
,求实数
和
的值;
(3)用“奔驰定理”证明推论②.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a760158be533dc2e8656411ebf628ddb.png)
已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf0edea792798049cd728af69f74e19.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296b3c900b196c311f20b89dfa40cd83.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ece143a342b4f057a89818eee185a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76429bb17df7ee3fef82f2ce4301b6d2.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/548011a81b29fc3b51b7f2bea99126e7.png)
试用“奔驰定理”或其它方法解决下列问题.
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62613718910c94b0542692291341e0ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba147c397c72a6d4f93ee2b4bbfe34.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb68c717f319b8b222ed7fccb73f8e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fcdec5fda440bbf42cf2472990e1e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
(3)用“奔驰定理”证明推论②.
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【推荐3】如图,在
中,
是
的中点,
在边
上,且
,
与
交于点
.
,
表示
;
(2)过点
作直线交线段
于点
,交线段
于点
,且
,
,求
的值;
(3)若
,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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833a1317d15bdad58ca21d3934a9a2b7.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/1dde8112e8eb968fd042418dd632759e.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/fa8c53645db602c72b00b599c2c0ff97.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f419bb9cfb8d103ac401b6a9688dd828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33917e8433b70eb15c4165f708ae1101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65bb363a04afbb6c4f7a40e665356e72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea79586df2029edb34c7cb2f67dc3722.png)
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