如图,在正方体ABCD-A1B1C1D1中,点M,N分别是A1B1,B1C1的中点.求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/ba54c7ba-2f40-44e8-a53b-c3f5ddfd5a02.png?resizew=144)
(1)AM和CN共面;
(2)D1B和CC1是异面直线.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/ba54c7ba-2f40-44e8-a53b-c3f5ddfd5a02.png?resizew=144)
(1)AM和CN共面;
(2)D1B和CC1是异面直线.
2022高三·全国·专题练习 查看更多[8]
(已下线)考点46 平面的性质与点线面的位置关系-备战2022年高考数学一轮复习考点帮(新高考地区专用)【学科网名师堂】上海外国语大学闵行外国语中学2021-2022学年高二上学期期中数学试题(已下线)考点32 异面直线所成的角-备战2022年高考数学典型试题解读与变式(已下线)10.2 异面直线(第2课时)(已下线)专题01空间直线与平面(7个考点)【知识梳理+解题方法+专题过关】-2022-2023学年高二数学上学期期中期末考点大串讲(沪教版2020必修第三册+选修一)上海市向明中学2022-2023学年高二上学期10月月考数学试题(已下线)第一章 点线面位置关系 专题六 异面直线 微点1 异面直线的性质、判定与证明【培优版】(已下线)第四章 立体几何解题通法 专题一 反证法 微点3 立体几何中的反证法综合训练【培优版】
更新时间:2021-09-16 22:07:57
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适中
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【推荐1】如图,在正四棱柱
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(2)是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc3fec8696dfed93bb1ea269e0ac947.png)
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解答题-证明题
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解题方法
【推荐2】如图,在三棱柱
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的中点.
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四点共面;
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平面
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(3)若
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平面
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
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解答题-证明题
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适中
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名校
解题方法
【推荐1】如图,棱柱
中,
,
底面
,
,
是棱
的中点 .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/30a1b772-2e42-4125-95ae-d88ee45519a2.png?resizew=183)
(1)求证:直线
与直线
为异面直线;
(2)求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d355b4c58b4e883b9e65cc6da8622e.png)
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(1)求证:直线
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(2)求直线
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解答题-证明题
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【推荐2】不共面的四点
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(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a392d05d3cfcbb438569b1ea9980dc2.png)
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