解题方法
1 . 如图,正方体
的棱长为2,点E为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/ce307be5-acba-44d7-ad79-7ff7c2463c32.png?resizew=168)
(1)求证:
;
(2)求直线
与平面
所成角的正弦值;
(3)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/2/ce307be5-acba-44d7-ad79-7ff7c2463c32.png?resizew=168)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4042962c8cde003f39d1c89c9730d9.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59375dfae3a8ec264204cfe78caac97d.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59375dfae3a8ec264204cfe78caac97d.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,平行六面体
中,底面
是菱形,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/3f40e38c-fabb-4af1-8f14-999ffb467e00.png?resizew=212)
(1)求
与
所成角的余弦值;
(2)若空间有一点P满足:
,求点P到直线
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270fae074028a1e26aef0c732b9eb696.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/3f40e38c-fabb-4af1-8f14-999ffb467e00.png?resizew=212)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
(2)若空间有一点P满足:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b9c1d486433a39af5b37d338527faa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
2022-11-29更新
|
525次组卷
|
3卷引用:辽宁省锦州市渤海大学附属高级中学2022-2023学年高二上学期期末数学试题
辽宁省锦州市渤海大学附属高级中学2022-2023学年高二上学期期末数学试题山西省高中教育发展联盟2022-2023学年高二上学期11月期中检测数学试题(已下线)专题09 空间距离与角度8种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(人教B版2019选择性必修第一册)
3 . 如图,在四棱锥
中,四边形ABCD是菱形,
,
,三棱锥
是正三棱锥,E,F分别为
,
的中点.
![](https://img.xkw.com/dksih/QBM/2022/4/21/2963064062271488/2965733582053376/STEM/08d3fb7d-e654-4e80-8187-3e91745a6733.png?resizew=251)
(1)求证:直线
平面SAC;
(2)求二面角
的余弦值;
(3)判断直线SA与平面BDF的位置关系.如果平行,求出直线SA与平面BDF的距离;如果不平行,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d4992bc4185d1a3ca52efb27425b5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69dd9f16a5c7a66e62e52fd66f4449ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://img.xkw.com/dksih/QBM/2022/4/21/2963064062271488/2965733582053376/STEM/08d3fb7d-e654-4e80-8187-3e91745a6733.png?resizew=251)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7267f2934c256fd74e58cb62d685bba0.png)
(3)判断直线SA与平面BDF的位置关系.如果平行,求出直线SA与平面BDF的距离;如果不平行,说明理由.
您最近一年使用:0次
2022-04-25更新
|
2165次组卷
|
5卷引用:辽宁省锦州市2022届高三第一次质量检测数学试题
辽宁省锦州市2022届高三第一次质量检测数学试题(已下线)理科数学-2022年高考押题预测卷03(全国甲卷)(已下线)期中测试卷(能力篇)(范围:第一章+第二章椭圆)-2022-2023学年高二数学上学期同步知识梳理+考点精讲精练(人教B版2019选择性必修第一册)福建省泉州市石狮市第八中学2022-2023学年高二上学期第一次月考数学试题(已下线)3.4.2 求距离(六大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
解题方法
4 . 如图在直三棱柱
中,
为
的中点,
为
的中点,
是
中点,
是
与
的交点,
是
与
的交点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/3d673006-a7c6-4b26-84ea-95e3cf798a51.png?resizew=160)
(1)求证:
;
(2)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
平面
;
(3)求直线
与平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e50114cea5086012c078e0755175db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a604466a9c8d10d557b3dfc43b547065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8816299fcb215f619db4c935374c378c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/3d673006-a7c6-4b26-84ea-95e3cf798a51.png?resizew=160)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e862713d078c4f06ec1f15ccd6f5a1f7.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4e7552a39c412d882766dbcd7eeb69.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4e7552a39c412d882766dbcd7eeb69.png)
您最近一年使用:0次
名校
5 . 如图,直三棱柱
中,
,
,
,点
是
的中点.
![](https://img.xkw.com/dksih/QBM/2021/10/27/2838227380625408/2840092835749888/STEM/471e6b45-7bcf-4a4e-851e-19d3e65b8ac3.png?resizew=192)
(1)求证∶
平面
;
(2)求
与平面
所成角的正弦值及直线
到面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ad3a578f403b9e6b97fa2dc955fc11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462b1c65b1b233ab98a90c164c0968c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/2021/10/27/2838227380625408/2840092835749888/STEM/471e6b45-7bcf-4a4e-851e-19d3e65b8ac3.png?resizew=192)
(1)求证∶
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/504a36c231b8e80724d01649e7c0944f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb7e8ef610cb5588bd52755399921a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb7e8ef610cb5588bd52755399921a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb7e8ef610cb5588bd52755399921a.png)
您最近一年使用:0次
2021-10-30更新
|
567次组卷
|
4卷引用:辽宁省锦州市联合校2021-2022学年高二上学期期末模拟数学试题