解题方法
1 . 如图,平面内
与
的夹角为
,
与
的夹角为
,且
,
,若
,则
( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/0fdb7545-ce33-4e3f-af1f-1212cb09ca6b.png?resizew=184)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf2d033664f89ef059ac8303622a3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20ec3efaa6b6ff5769e8999df5714a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996bf3d35b6763cbc1a423b13a9df2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bb378667672539c2cfc505b8f7b6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d0fdf5523dad2df2226ba4dc6b9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/255dcc28ae10cc03f3914a090f79604b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/0fdb7545-ce33-4e3f-af1f-1212cb09ca6b.png?resizew=184)
A.4 | B.5 | C.6 | D.7 |
您最近一年使用:0次
2020-06-26更新
|
404次组卷
|
2卷引用:江苏省扬州市宝应中学2023-2024学年高一凌志班上学期9月月度纠错数学试题
名校
解题方法
2 . 在平面直角坐标系中,向量
(3,4),向量
,(λ<0),若
=1,则向量
的坐标是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7481aca88fa2c15f6f9162080b37f0d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82d81230b3ecc7e9b935dd41c1b74f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9667f6c0eac65be9c5e10f966af41f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
2020-03-04更新
|
376次组卷
|
3卷引用:江苏省扬州市新华中学2020-2021学年高一下学期第一次月考数学试题