名校
解题方法
1 . 如图,在梯形ABCD中,
,
,点
为空间任一点,设
,
,
,则向量
用
,
,
表示为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a14895e4d42943e5a87ba078dd8268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f1161e0345b3646c71365430dccbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714e672583f293a4f385bd35accce875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0817b1d42d814047f094dea7b57cd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcc9cc1edee22d39995777502be4d53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce36c55a678b2d9da467ffde94b1b57.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/45d8e782e9687f2e6276a8541ff8dcf7.png)
您最近一年使用:0次
2 . 已知
是空间不共面的一组向量,
是空间不共面的另一组向量,若向量
在
下的坐标为
,则向量
在
下的坐标是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed18a92338c7578c18a5ba3a2ae1ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e788b32923874e0eb2b986fea80e7945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d806f27eecf5aee1e75bf35acbcd4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed18a92338c7578c18a5ba3a2ae1ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8047a2ef424999a64178bc0ff391c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d806f27eecf5aee1e75bf35acbcd4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e788b32923874e0eb2b986fea80e7945.png)
您最近一年使用:0次