已知向量
与
的夹角为
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a349bb803a62f2a35f62d2e568a12b80.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f726edf8cca26e1011faa7101c506e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a593f5a5b0b6d5a3e4bb0481875af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a349bb803a62f2a35f62d2e568a12b80.png)
更新时间:2024-06-08 00:09:24
|
相似题推荐
填空题-单空题
|
较易
(0.85)
解题方法
【推荐1】已知向量
,其中
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9043a9716d4eb6b554bab52ab9f59e43.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877876b1794f96ac898ecb5f45d70e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a06451b968696c179896a47ee91fd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9043a9716d4eb6b554bab52ab9f59e43.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
解题方法
【推荐2】已知
、
是单位向量,且
,若平面向量
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfcbdd80ddab93ea44536be923a9121.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff409cd3886c767afb13c9a869c5f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6570cd7c2f81c9fcffd2c64664f1564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f5a2c7316d41e39dfcf4a156c9f660.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d90d5dff0b808baae250ca68284993b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de98840de5b24bc0531428b38c4b6448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfcbdd80ddab93ea44536be923a9121.png)
您最近一年使用:0次