1 . 已知向量
,
,若向量
,则实数
为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d1cd34836b4b214d7868fcba67b801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62430466e50da4a5bd32783040b04bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfdcb91d699bffeff09ca9700eba8867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2 . 已知向量
,
平行,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781c2b3d0fee594e1fb1bf4cadda5015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be4ce23c120c39a07fa1bba1d8ca32b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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3 . 设
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
_________ 时,点
,
,
共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dde072ab3c739a80bbb5bcf69b11279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689da5627c0870e1a2857048fcace065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e31a81f0686147fcb8a25491cb07af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.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)
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2020-02-01更新
|
234次组卷
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2卷引用:2016届上海市嘉定区高考一模(文科)数学试题
2012·江西南昌·一模
名校
4 . 已知
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d224f1ca324c898da5f50153ded24b5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350145623f51d8c872ccec415f57d186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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2021-05-24更新
|
587次组卷
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8卷引用:上海市浦东新区2021届高三三模数学试题
上海市浦东新区2021届高三三模数学试题(已下线)2012届江西省南昌市高三调研理科数学(已下线)考向12 平面向量的概念及线性运算-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)模块08 平面向量的坐标表示-2022年高考数学一轮复习小题多维练(上海专用)上海市行知中学2021届高三上学期期中数学试题新疆塔什库尔干塔吉克自治县深塔中学2020-2021学年高一下学期期末数学试题北京市丰台区2020-2021学年高一下学期期末数学试题(已下线)专题13 平面向量(模拟练)-1
名校
5 . 已知
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e251713f871c1d3e1df9eda2722fdee.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
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2018-10-26更新
|
423次组卷
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4卷引用:2017届上海市上海中学高考数学模拟试卷(6)数学试题
名校
6 . 已知向量
,
,若
与
共线,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53d07a557c2cd407282faa91016b67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20653d829c2786fb27f8db0903bba645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc26679e8ade0f083ca035337bf58245.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3364b5989fa241b26266c0d96ab9714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-07-06更新
|
1137次组卷
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9卷引用:2019年上海市上海师范大学附属中学高三下学期第二次质量检测数学试题
7 . 将两颗质地均匀的骰子抛掷一次,记第一颗骰子出现的点数是
,记第二颗骰子出现的点数是
,向量
,向量
,则向量
的概率是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ff02f2e487fd34571e9a4ba3369d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b766e1414ad7445839c7ac2b9becc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb58883caf5c8ca1e94389839d294b6.png)
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2018-04-15更新
|
914次组卷
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4卷引用:【区级联考】上海市徐汇区2018届高三下学期学习能力诊断(二模)数学试题
2014·上海虹口·一模
名校
8 . 已知
,
,如果
∥
,则实数
的值等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca02595e90340846a6ecd8250c38523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493da7e831a19a31c6722828c344cb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696bf63a3a726968a19b8927be5a2112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0928087301c0628fba2a9cd3af14f34d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-03更新
|
1810次组卷
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3卷引用:2014届上海市虹口区高三5月模拟考试文科数学试卷
(已下线)2014届上海市虹口区高三5月模拟考试文科数学试卷云南省建水第六中学2017-2018学年高二下学期期中考试数学(文)试题浙江省绍兴市诸暨中学2021-2022学年高一(实验班)上学期期中数学试题