名校
1 . 已知平面向量
,
.
(1)若
∥
,求
的值;
(2)若
,求
,以及向量
在向量
方向上的投影.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c79176329501b314afeeb583c2ac17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce679feeb55852069260700b3652a9d.png)
(1)若
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca7702985467337a01e955f92622f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
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名校
2 . 若
,
,
,且
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312dfcac41b7f5383c574d921eb949c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62385a29bbca8826e2616198b1176db6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9883e09b1ac40ccaebcaec21e2871c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfdcb91d699bffeff09ca9700eba8867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
3 . 设
,
,
且
三点共线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a52a512acbfc13e72338b712784d84b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55f1edc404f28e1182a99e5a9649a6ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0f14797e092ac8f71994ec37724589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae29000bb323cdde854b9b2990702106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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2019-11-14更新
|
230次组卷
|
2卷引用:福建省泉州市晋江市南侨中学2019-2020学年高二上学期11月月考数学试题
4 . 与
平行,且满足
的向量
的坐标是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151238849e857a9907519ad0c3a66f26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923e8f20071b60d18bf571edabc9bbbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
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5 . 已知向量
,
,且
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa648ebd543f222235dc16eaa679032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8acf34bf27e7efd2f933bcaefbcad867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec23cdadc160f5d8804a5a25bbccb58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d595cfa880d40c320e31852c3499845.png)
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2019-10-22更新
|
448次组卷
|
2卷引用:广西贺州市2018-2019学年高一下学期期末质量检测试卷文科数学试题
名校
6 . 已知向量
.
(1)若向量
,且
,求
的坐标;
(2)若向量
与
互相垂直,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5221b7ebac8e7482bc452240ce1ca030.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ee3a0e0f06c77f9c6980d15073c693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5b8eb2cdf5bbb1ac234e59ea80cd1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f200069e313c5863a4efab246fd347a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62570fa1490dd3436952b238153b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2019-10-22更新
|
1740次组卷
|
12卷引用:山东省济南市2018-2019学年高一下学期期末学习质量评估数学试题
山东省济南市2018-2019学年高一下学期期末学习质量评估数学试题山东省滨州市2019-2020学年高一(下)期末数学试题山东省滨州市2019—2020学年下学期高一年级期末考试数学试题河北省唐山市曹妃甸区第一中学2020-2021学年高一下学期六月月考数学试题重庆市杨家坪中学2020-2021学年高一下学期第一次月考数学试题甘肃省白银市会宁县会宁县第一中学2021-2022学年高一下学期期中数学试题天津市第四十二中学2019-2020学年高一下学期期中理科数学试题广东省东莞市东莞一中、东莞高级中学2020-2021学年高一下学期第二次质量检测数学试题安徽省合肥市第七中学2022-2023学年高一下学期期中考试数学试卷云南省大理白族自治州祥云县祥云祥华中学2023-2024学年高一下学期3月月考数学试题福建省莆田擢英中学2023-2024学年高一下学期3月月考数学试卷重庆市万州二中教育集团2023-2024学年高一下学期期中考试数学试卷
7 . 已知
,
,
,
,若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71024a99cb7fc3e09e00467850d82c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbc91ee594f832af2a225ed74cea7cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1564b864c841b030fbc015032b410168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33efdc4201d7385469cef4c7be484e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89879d3524590fe7d253b6e3086de649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知向量
,
,且
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312dfcac41b7f5383c574d921eb949c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085093a48b6b7a4417367ab6faa283e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a51be91a825637d9f9f53f4bffa7a0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89879d3524590fe7d253b6e3086de649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 向量
,
,若
,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197596b89a8f70fd5eea2f763abc62c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d9c268afd4732143cb0e0dd28575fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3854a1870df3dfab871bb1b15d41cb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-09-27更新
|
356次组卷
|
2卷引用:浙江省湖州市2018-2019学年高一下学期期末考试数学试题
10 . 已知向量
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e44dee27183afbb993519be165858ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1ac34f2451e21ca9420b0beb96cbe02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3854a1870df3dfab871bb1b15d41cb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
您最近一年使用:0次