如图所示,向量
,A、B、C在一条直线上,且
,则( ).
![](https://img.xkw.com/dksih/QBM/2014/7/7/1571811114811392/1571811120275456/STEM/20bc8fb85ea143c7926b85518509f9b3.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348590a51eecdfec68fd23963c5248fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f67380916dabbda44bdcdcc8296d78.png)
![](https://img.xkw.com/dksih/QBM/2014/7/7/1571811114811392/1571811120275456/STEM/20bc8fb85ea143c7926b85518509f9b3.png?resizew=160)
A.![]() | B.![]() |
C.![]() | D.![]() |
13-14高一下·广东云浮·阶段练习 查看更多[1]
(已下线)2013-2014学年广东省云浮市云浮中学高一5月月考文科数学试卷
更新时间:2014-07-07 19:46:29
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【知识点】 向量在几何中的应用
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单选题
|
较易
(0.85)
【推荐1】已知△ABC和点M满足
+
=﹣
,若存在实数m使得m
+m
=
成立,则m等于
![](https://img.xkw.com/dksih/QBM/2016/2/25/1572499386867712/1572499392831488/STEM/a1bd3275da344d639284104289e13d4a.png)
![](https://img.xkw.com/dksih/QBM/2016/2/25/1572499386867712/1572499392831488/STEM/353f17074a5f43fa981abf5e6d2b9f53.png)
![](https://img.xkw.com/dksih/QBM/2016/2/25/1572499386867712/1572499392831488/STEM/1b711deabe464dd4a8dfffa0e7e8008d.png)
![](https://img.xkw.com/dksih/QBM/2016/2/25/1572499386867712/1572499392831488/STEM/4d7d5c854206484dab8ab9e86b9d60a7.png)
![](https://img.xkw.com/dksih/QBM/2016/2/25/1572499386867712/1572499392831488/STEM/11ec4987e4cb4485a960c3e5bd7a366c.png)
![](https://img.xkw.com/dksih/QBM/2016/2/25/1572499386867712/1572499392831488/STEM/2994f57e3bd5423db1adbe07593b9bd7.png)
A.![]() | B.2 | C.![]() | D.3 |
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单选题
|
较易
(0.85)
【推荐2】已知
、
是两个单位向量,若向量
=
-2
,
=3
+4
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85bda46cc51c938224d9165301e3896.png)
=-6,则向量
与
的夹角是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85bda46cc51c938224d9165301e3896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48bd8a052e56b53a66497b4b55a968a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc155e36276a2226c40a1f4ef7a0f41a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次