题目内容
![](http://thumb.1010pic.com/pic3/upload/images/201212/62/eec4dd8a.png)
(1)填空:
BC |
BA |
BD |
BD |
AB |
AE |
EB |
EB |
(2)求作:
BC |
AE |
分析:(1)根据
=
,-
=
,等量代换后运算即可;
(2)将
转化为
,将△ADE向右补全为平行四边形,则AF即是所求向量.
BA |
CD |
AE |
EA |
(2)将
BC |
AD |
解答:解:(1)∵
=
,-
=
,
∴
+
=
+
=
;
-
=
+
=
;
(2)所作图形如下:
.
BA |
CD |
AE |
EA |
∴
BC |
BA |
BC |
CD |
BD |
AB |
AE |
AB |
EA |
EB |
(2)所作图形如下:
![](http://thumb.1010pic.com/pic3/upload/images/201212/73/43e0f838.png)
点评:本题考查了向量的知识,注意掌握向量的加减运算法则及向量的平移,属于基础题.
![](http://thumb2018.1010pic.com/images/loading.gif)
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