设向量
,
的夹角为
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7795297d298fb52fe8f48618c1abda.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/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7795297d298fb52fe8f48618c1abda.png)
22-23高三上·陕西渭南·阶段练习 查看更多[2]
更新时间:2023-08-23 15:21:10
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容易
(0.94)
【推荐1】在菱形ABCD中,(
)·(
)=_______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4889c14bf8dc83f969f1a3e046143f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d515d8c578fb3c3331e18dc88a5337.png)
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填空题-单空题
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容易
(0.94)
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解题方法
【推荐2】已知
与
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5493e8acc0092f0f5c496be21eaf7f0b.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf9e24f265ae8467ab95ddbf1b5897a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5493e8acc0092f0f5c496be21eaf7f0b.png)
您最近一年使用:0次