名校
1 . 已知单位向量
,向量
,
,若
,则实数λ=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a3f5738c22b6b5b7f9b97151c13fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8479e372e24ca1e9d10635911d196f7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fd64dee77f9c804a7385acd980a932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
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2024-03-21更新
|
1105次组卷
|
4卷引用:陕西省西安地区八校2024届高三下学期联考数学(文)试题
名校
2 . 已知
,
,
,
的夹角为30°,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4c713270516326219302e89098db40.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ae0d7b3266f32b6a916b6237b6b838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b311957e153c4ebb3c77fbd58e3a7e.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/42811a032062215c62b8b7d9b49f8397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4c713270516326219302e89098db40.png)
您最近一年使用:0次