已知点
.
(1)已知点
,以
为一组基底来表示
;
(2)若
,且点
在第四象限,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95931dbefbc78f114b5fe5178a07b423.png)
(1)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec6dacad2a07705a8934841f5774eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6198cd97e3a2d651277a9468860f4e54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c9d74e365ce1af8fd66d4008b90b19d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f231bbb23ad136e1b17d1b4141c9a9d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
21-22高一下·河南洛阳·阶段练习 查看更多[3]
河南省洛阳市强基联盟2021-2022学年高一下学期3月大联考数学试题(已下线)专题2平面向量的坐标运算 (基础版)(已下线)6.3.2~6.3.4 平面向量的坐标表示(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
更新时间:2022-04-05 16:59:32
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【推荐1】已知
,且
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c47bb82b5ef750f5d75e4c354cecd5.png)
(1)求向量
的坐标,并用
表示
用
表示
;
(2)设
,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d45a38d71459c14fa135a163615d041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dd0445a82465bb0fccaa012f2e9c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c47bb82b5ef750f5d75e4c354cecd5.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf785aa19bb8f014ec8b396877c2284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd034eda9b52517d3b7b1dd6cc153bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a46c63acca5b89595f72462f55d9d94c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd034eda9b52517d3b7b1dd6cc153bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff455c8edd6edf1a55ebb5e3235162da.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47d52e400c1c11dca3832df5661f36f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
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【推荐2】在直角坐标平面中,已知点
,
,
,…,
,其中
是正整数.对平面上任一点
,记
为
关于点
的对称点,
为
关于点
的对称点,…,
为
关于点
的对称点.
(1)求向量
的坐标;
(2)对任意偶数
,用
表示向量
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c0c770ededa07b186fd5c34eb16ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7eee1f9841ba418a99f4af12c62b58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d806aaaf18d476faa01496db5644e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b6ac9df5d8ffede03ef0d21c32a88e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ea50db79b18d8700cfa2559ff5e2d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12787674cf0f0e71eec9ac3d1727fda4.png)
(2)对任意偶数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc801f5007dec6cf5183bfd3051fb02.png)
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【推荐3】已知在平行四边形ABCD中,
,
,
.
(1)求点D的坐标;
(2)试判断平行四边形ABCD是否为矩形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dab74e16403e8131f9f5b2a74f3a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da50ebd2656745259525c8b157e389e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c973a9e709cbff65f8f311e5d65ad7b4.png)
(1)求点D的坐标;
(2)试判断平行四边形ABCD是否为矩形.
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【推荐1】如图,向量
,
为单位向量,
,点
在
内部,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/a19927d7-af09-4343-b1d0-e8d09e89158a.png?resizew=116)
(1)当
时,求
,
的值;
(2)求
的取值范围.
![](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/49a4c11d41372175ba3541a44c3376b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385495ec3ecd33e95b9b671ccc2866b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7ddbb2127b206954113b260781c466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d2408d04f4bcf651ef6d47ac75dc15e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/a19927d7-af09-4343-b1d0-e8d09e89158a.png?resizew=116)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b979d27d7260d51ba0c826e19b17ba70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
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【推荐2】设
,
是两个不共线的向量.
(1)判断
与
是否共线,并说明理由;
(2)已知
,
,
,若A,B,D三点共线,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e369bf3029862cf021f54681a9086ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee10451fe3e2b5eaaa8d6e576c28281.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53fc60372ecb3bd486ba2ae37b580ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d9a30b1f1c39f55d77946aa5a781fa.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a00097a07305e3343eba93aae83578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c09cf7b18b7b1abddcfcaec81c0157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4595e1d275786464967c49ecaa50c59.png)
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【推荐3】如图,在
中,已知M是边
的中点,
,线段
与
交于点O.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/28b6b1d8-16b4-4b39-b1ee-ed93646607dc.png?resizew=177)
(1)若
,求
的值;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ee9f129ef243a5d995ad6925e7e30b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/28b6b1d8-16b4-4b39-b1ee-ed93646607dc.png?resizew=177)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a09b217612cd260c67b1a3abe3b105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df7c6c24d94fc098fee12e47a050cdb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634bcf3a995960a16e29276e46cc6268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
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【推荐1】平面内给定三个向量
,
,
,回答下列问题:
(1)求满足
的实数m,n
(2)若
与
的夹角为锐角,求出实数k的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44f3cfff5e039c990ac7659ae3601e2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9023b2cf1482bcd26e7adf1731fef635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51d009327ba49bff391c53155c8e679.png)
(1)求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bec7d3ad8656ea585a99759e7491c8e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a708da37411989b0dd3ff8ea7264cba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3745ec5b44aca5ad078c0852ba8615aa.png)
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【推荐2】点C在以点O为圆心的圆弧
上变动,
,若
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d17e3e539a1effa78ace884391f977e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc7b42d14c786257bf2163c03a87d8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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【推荐3】如图,已知
是边长为2的正三角形,P在边BC上,且
,Q为线段AP上一点.
,求实数
的值;
(2)求
的最小值;
(3)当
的重心在直线CQ上时,求
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eef53cd73eb4a628ca6a95517131b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bcd6acd78fc389ca2fe03c9006e4d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa644477d812c38da6df9e3751468626.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2225e9d4e443d81abfe1bed83ba25e9b.png)
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