如图,在长方体
中,M为
的中点,N在AC上,且
.求证:
与
、
共面.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b506b61811ff1eca10c1a18e44235885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b8ebc4d3bf0f0ba167276bb3960514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab386abfe366a8830110ec364335a5e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75abb9dde46a2262eb62c9e5fe2ff939.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/c0656c91-251e-4dbe-871a-c1998f10249b.png?resizew=200)
更新时间:2022-09-13 21:02:26
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【知识点】 判定空间向量共面
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解答题-问答题
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较易
(0.85)
【推荐1】已知A,B,C三点不共线,点O是平面ABC外的任意一点,若点P分别满足下列关系:
(1)
;
(2)
.
试判断点P是否与点A,B,C共面.
(1)
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(2)
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解答题-证明题
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较易
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【推荐2】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8632651e05bbebcc3e7f6fd0a9d27e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720da193aaf7aa394aa2778d32b7737e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b314d2db534edce3409dbb6bb1e8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c21e19dba82d6e6361bf722e3b4786b.png)
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您最近一年使用:0次