2024高三·全国·专题练习
解题方法
1 . 两条异面直线上分别有定长的两线段
,求证四面体
的体积为定值.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/54662718-a5be-41ab-af54-582fbdef229c.png?resizew=136)
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2024高三·全国·专题练习
2 . 已知直线
为异面直线,且
与
不相交,求证:
为异面直线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f880e93459a7f3743063f23ae705949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a475fec8ded321e10a6697319fb975.png)
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2024高三·全国·专题练习
3 . 四面体中,
,求证:
与
中边
上的高
和
必为异面直线.
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2022高二·全国·专题练习
4 . 已知正方体
的棱长为1,E、F分别为
、
的中点,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/25/84f80df1-3eec-4c50-b662-00dc7db3b004.png?resizew=201)
求证∶直线
与直线
是异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/25/84f80df1-3eec-4c50-b662-00dc7db3b004.png?resizew=201)
求证∶直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
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5 . 如图,已知
,
,
,
,
.求证:b与c是异面直线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73d51665f7e628b34b4cb5e637222e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e076b91a9178217532e11c496400e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b04bdd6afe4e31f65cbfc5093ddb1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c233c892618723489af4dbb77b6a254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e59fc64fe2be309ceb53b0b50c1d3f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/31/4a30ec85-8571-48a2-b4ae-2cd52db821d5.png?resizew=169)
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名校
解题方法
6 . 如图三棱柱
中
平面
且
,底面
是边长为
的等边三角形,点
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/3e707b1c-6bb4-4954-b224-9a4390ca2a2c.png?resizew=140)
(1)求证:
平面
;
(2)求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef8866ccf160ddc441bf69c5d3a3d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/3e707b1c-6bb4-4954-b224-9a4390ca2a2c.png?resizew=140)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07391ef575d28f09bc5cda0ff8130a54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a935b7d21a103a264b6e96ecf82dbe4a.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
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