1 . 在
中,
为边
的中点,若
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b49efa8940a1a144c135ac1e65a17f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2019-02-12更新
|
639次组卷
|
2卷引用:【市级联考】广东省韶关市2019届高三1月调研考试数学理试题
名校
2 . 延长正方形
的边
至
,使得
.若动点
从点
出发,沿正方形的边按逆时针方向运动一周回到
点,若
,下列判断正确的是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/6a967c7b-bc12-4aa3-bc95-48c19c54d021.png?resizew=169)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4a1dc86ec008a976874c72f84c45c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a44be92f38e063a01b8cd67418815cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1b2df25efcb6812f4ad70e9cd1d731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485afc935e367f6f0d0ab92146eba696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e9c70a7bb76abc885c73c7ef7d8c86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2868b617c871e18c928c9a573bc8c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2868b617c871e18c928c9a573bc8c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e386ade0cb47482bf8bbeeb7cfe2d553.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/6a967c7b-bc12-4aa3-bc95-48c19c54d021.png?resizew=169)
A.满足![]() ![]() ![]() |
B.满足![]() ![]() |
C.![]() |
D.![]() ![]() |
您最近一年使用:0次
2016-12-04更新
|
1233次组卷
|
14卷引用:2014-2015学年广东省韶关市高一下学期末检测数学试卷
2014-2015学年广东省韶关市高一下学期末检测数学试卷2016届河北省邯郸市一中高三一轮收官考试一理科数学试卷2015-2016学年辽宁沈阳二中高一下学期期末数学试卷海南省文昌中学2016-2017学年高一下学期期中段考数学(理)试题上海市行知中学2018-2019学年高二上学期期中数学试题上海市市西中学2016-2017学年高二上学期期中数学试题上海市南洋模范中学2016-2017学年高一下学期期末数学试题北京市首都师范大学附属中学2019-2020学年高一第一学期期末考试数学试题(已下线)第28讲 向量的分解与向量的坐标运算-2021年新高考数学一轮专题复习(新高考专版)(已下线)专题28 平面向量综合练习-2021年高考一轮数学(文)单元复习一遍过(已下线)专题28 平面向量综合练习-2021年高考一轮数学(理)单元复习一遍过(已下线)第六单元 数列(B卷 滚动提升检测)-2021年高考数学(理)一轮复习单元滚动双测卷第二章 6.2平面向量在几何、物理中的应用举例-北师大版(2019)高中数学必修第二册6.2平面向量在几何物理中的应用举例课后巩固提升习题2020-2021学年高一下学期数学北师大版(2019)必修第二册
名校
解题方法
3 . 在平行四边形ABCD中,E,F分别满足
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d8cd7c03225c95a51a793c7d99e91c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde6c3bfb82bce775ad9e47f9f2c994f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0de1d968942310408216080938c467.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-28更新
|
252次组卷
|
6卷引用:广东省乐昌市第一中学2021-2022学年高二下学期6月学科测试数学试题
广东省乐昌市第一中学2021-2022学年高二下学期6月学科测试数学试题山西省晋中市2021届高三上学期1月适应性考试数学(理)试题山西省晋中市2021届高三上学期1月适应性考试(一模)数学(文)试题山西省2021届高三上学期适应性调研数学(文)试题山西省晋中市2021届高三上学期一模数学(文)试题(已下线)广东省广州市中山大学附属中学2024届高三上学期期中数学试题变式题1-5
解题方法
4 . 如图,在矩形
中,
与
的交点为
为边
上任意一点(包含端点),则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7e71123e4b7ec563f7c8367384d9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95229f26c09fe84f1f7928c85b37b286.png)
A.2 | B.4 | C.10 | D.12 |
您最近一年使用:0次
名校
5 . 若
,则
的坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b5316b0e7d3bd43cc716e2dc610492.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ba04d1b88943fd16ba34a046faf8060.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-02-21更新
|
642次组卷
|
7卷引用:广东省韶关市永翔实验中学2021-2022学年高一下学期3月月考数学试题
名校
6 . 已知
,
是同一平面内的向量,
(1)若
,
,
与
的夹角为
,求
;
(2)若
,
,
与
平行,求
与
的夹角
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb74499b8965b3f6c9acfbbb168df438.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf470ed1e71f23d870825b08a2e338b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a9c7fde740523f03ad350f8e6d2c57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce30e701801736656103450834313a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2020-08-07更新
|
312次组卷
|
3卷引用:广东省韶关一中2017-2018学年高一上学期期末数学试题
7 . 如图,在
中,点
在
边上,且
,点
在
边上,且
,则用向量
表示
为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/7054a220-7ea4-4233-bee0-ca22b2d8a4ab.png?resizew=185)
![](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/f326d6507022b50a4ac35ff984b7f293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be62ac0f5edb1eaebb5f491a7c30f97b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c58c5591f89d5fe5188f64687375c6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f88369a480ff098461307038ceb224e2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/7054a220-7ea4-4233-bee0-ca22b2d8a4ab.png?resizew=185)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知向量
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/052ad61ba2939e4358f642da02a02303.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知向量
,
,若
,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5412e604d67ddbb5cab4f3f81a0f3ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90cb7508d9c38e4847bd0853cf770ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70facc9bc02af0867d248407bd317c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.1 | B.-4 | C.-1 | D.4 |
您最近一年使用:0次
10 . 已知向量
,
,若
与
共线,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8c397f920c1d8796b5f4d7a2618e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bed747b89364dabba83927634b8f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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