1 . 若
,
,且
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab2f7a98f6d9e4369594c70bac5b17c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7896a595589174728701f6b4e4e99325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3854a1870df3dfab871bb1b15d41cb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
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2019-11-10更新
|
199次组卷
|
3卷引用:沪教版 高二年级第一学期 领航者 第八章 每周一练(2)
2 . 已知
.若
三点共线,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f69b3d8471499bb4bed0aecd52e2fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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3 . 设
是不共线的两个向量,已知
,
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c528f17a10b468ebec6711ee98f38a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9eb3b4edf2976df739df7482f800df.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2019-09-06更新
|
701次组卷
|
6卷引用:【全国校级联考】吉林省伊通满族自治县第三中学校等2017-2018学年高一下学期期末联考数学(文)试题
【全国校级联考】吉林省伊通满族自治县第三中学校等2017-2018学年高一下学期期末联考数学(文)试题【全国校级联考】吉林省伊通满族自治县第三中学校等2017-2018学年高一下学期期末联考数学(理)试题(已下线)2019年一轮复习讲练测 5.1 平面向量的概念及线性运算【浙江版】【讲】(已下线)第01讲 平面向量的概念及线性运算(讲)-《2020年高考一轮复习讲练测》(浙江版)(已下线)专题6.1 平面向量的概念及其线性运算(精讲)-2021年新高考数学一轮复习学与练(已下线)专题6.1 平面向量的概念及其线性运算(讲)-2021年新高考数学一轮复习讲练测
名校
4 . 若点
共线,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f17de1ea1c46a5b3ef9ba65c74a3cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-07-12更新
|
996次组卷
|
3卷引用:福建省厦门市2018-2019学年度第二学期高一年级期末数学试题
名校
5 . 已知
,
=(
,6),且
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab51d0f93f0dfcc3a091adbc92e42c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d810cc40163fa9e497effc26b1e26285.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-07-12更新
|
967次组卷
|
5卷引用:湖南省岳阳县一中2018—2019学年高一下学期第二次阶段数学试题
6 . 已知平面向量
,
,若
与
同向,则实数
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbd57c6e24b37ff778bba9514b240f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97edd2daa929d4e2ab75c4d2cd2c6d21.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/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 平面向量
与
共线且方向相同,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/593d44062716804072f0848ae23e45f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8cbc5e8eff7c95b3038d4c6055daa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
8 . 已知向量
=(1, -3),
=(m, 6),若
∥
,则 m=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
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9 . 在
中,a,b,c分别为三内角A,B,C所对的边,设向量
,
,若
,则角A的大小为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db7931bcc45c038c56863f25d64b582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76cfafa163de1536af67c3e1001c7716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/401078c16ea92130b47f728bea699c62.png)
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10 . 已知向量
,
,
,若
为实数,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8abca0f869e2f6b315408df493fd9bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3973c08540fde8ca16c59a21334800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41549a9ad0f417d375883bc24091666e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e37fbf6d07efc39d7086eee493f9bdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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