已知平面向量
,
满足
,
,且
,则
与
的夹角为 _________ .
![](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/d8ae0d7b3266f32b6a916b6237b6b838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf342e77c56e55a35bb1151bc215a3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0987c94f2301a6f2d1897cc11b64ead4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
更新时间:2024-05-09 07:59:57
|
相似题推荐
填空题-单空题
|
较易
(0.85)
名校
解题方法
【推荐1】若非零向量
,
满足
,则
,
的夹角为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2eb7bf5fdc15e54528866fd2b89afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
【推荐2】若
,
是夹角为60°的两个单位向量,若
=2
+
,
=-3
+2
, 则
与
的夹角为______ .
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572317530587136/1572317536395264/STEM/cbadb51340ef4381a78c1e6f2db332aa.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572317530587136/1572317536395264/STEM/a7b0098e152849329b32137fea96ea13.png?resizew=19)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572317530587136/1572317536395264/STEM/cbadb51340ef4381a78c1e6f2db332aa.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572317530587136/1572317536395264/STEM/a7b0098e152849329b32137fea96ea13.png?resizew=19)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572317530587136/1572317536395264/STEM/cbadb51340ef4381a78c1e6f2db332aa.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572317530587136/1572317536395264/STEM/a7b0098e152849329b32137fea96ea13.png?resizew=19)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
您最近一年使用:0次