名校
1 . 已知A(4,6),
,有下列向量:①
;②
;③
;④
其中,与直线AB平行的向量( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f9e35715cde9828497ae00fdb52e6b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8f7bd6f5845109da346c13dba1a3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fdbe911ad9b28f12215c279846a07e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a3bc1e4f466d91962fb8e24fcdf01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40629c4142225cb09ccf4442280217e5.png)
A.①② | B.①③ | C.①②③ | D.①②③④ |
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名校
解题方法
2 . 已知
是不共线的向量,
,
,且
三点共线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ccba3b87a8a48ac3dd5f72d00bdb1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3ca252a90e5f622cc6f478d639d5fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea604b0ee4e41bdec29481aecb80b157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.-1 | B.2 | C.-2或1 | D.-1或2 |
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解题方法
3 . 已知向量
与向量
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0999d0e0e9e22f106ef579843f87188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79066eb5105ad367a47dd3d9cb952ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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4 . 设
=(1,-2),
=(a,-1),
=(-b,0),a>0,b>0,O为坐标原点,若A,B,C三点共线,则a+
的值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eeb629a6f94d187154b9e0fba4eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987a2625dae99578e5c0e7b57d4a1c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0517fdb968a634506233dcb4f75b4112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4b4cd4260bda97bac461d5786e6d932.png)
您最近一年使用:0次
2018-02-21更新
|
364次组卷
|
4卷引用:高中数学人教A版必修4 第二章 平面向量 2.3.4 平面向量共线的坐标表示(1)
名校
5 . 已知向量
,
满足
,
,且
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.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/5e3f5a708574ca78631988b5c00cae76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf342e77c56e55a35bb1151bc215a3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6836870d047ff2faeea5d05721f4058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
您最近一年使用:0次
2017-05-21更新
|
419次组卷
|
4卷引用:福建省三明市2017届高三下学期普通高中毕业班5月质量检查理科数学试题
12-13高一下·吉林长春·阶段练习
解题方法
6 . 若向量
和向量
平行,则 ![](https://img.xkw.com/dksih/QBM/2013/6/8/1571241186672640/1571241192079360/STEM/6bbe59895655415c9c4b2d7724db4f12.png)
![](https://img.xkw.com/dksih/QBM/2013/6/8/1571241186672640/1571241192079360/STEM/01fb219e0e3b489fbe7bdb60fcb13dac.png)
![](https://img.xkw.com/dksih/QBM/2013/6/8/1571241186672640/1571241192079360/STEM/8f7e93a853974a81b3500b1f430fffc4.png)
![](https://img.xkw.com/dksih/QBM/2013/6/8/1571241186672640/1571241192079360/STEM/6bbe59895655415c9c4b2d7724db4f12.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知
=(3,2),
=(6,y),若
∥
,则y等于( )
![](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)
A.-9 | B.-4 | C.4 | D.9 |
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11-12高一下·广东云浮·期中
名校
8 . 若三点P(1,1),A(2,-4),B(x,-9)共线,则x=____________ .
您最近一年使用:0次
2016-12-01更新
|
646次组卷
|
4卷引用:2011-2012学年广东省新兴县惠能中学高一下学期数学试卷
(已下线)2011-2012学年广东省新兴县惠能中学高一下学期数学试卷2015-2016学年陕西省西安交大二附中南校区高一下期中数学试卷重庆市清华中学校2021-2022学年高二上学期第一次月考(10月)数学试题山西省临汾市洪洞县向明中学2023-2024学年高二上学期10月月考数学试题(A卷)
名校
9 . 已知
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b511ee1e1ef29ae0d1883ca77ef46b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b9c8d1ae9e31d72ed1708b99f7082a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d51791da85cc47e0214ca47a14ea3fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
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10 . 设向量
,若
,则
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9875d872d720e24e621617e64b7e900b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/523c74d21b7934a09348b1a01e1ae606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
您最近一年使用:0次