名校
解题方法
1 . 如图,直三棱柱
中,
,
,
,点P在线段
上.
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897962610122752/2899874628042752/STEM/f8dbc5c9-451a-424f-9c8b-39c371da3a2b.png?resizew=146)
(1)若P为
的中点.证明:
平面
;
(2)是否存在点P,使得平面
与平面ABC所成的二面角为
?若存在,试确定点P的位置;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a355958abf7dc0f2eb949584cb87907b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1602c3d3e9628cd503a443024410e87a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2022/1/19/2897962610122752/2899874628042752/STEM/f8dbc5c9-451a-424f-9c8b-39c371da3a2b.png?resizew=146)
(1)若P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4560fa4ad459b58b723c74bd24e51ebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f320511883ba5de9b71fd4f2c6edafab.png)
(2)是否存在点P,使得平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f320511883ba5de9b71fd4f2c6edafab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
您最近一年使用:0次
2022-01-22更新
|
503次组卷
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3卷引用:广西百色市2023-2024学年高二上学期期末教学质量调研测试数学试卷
2 . 如图,在圆柱
中,
,
分别是上、下底面圆的直径,且
,
,
分别是圆柱轴截面上的母线.
![](https://img.xkw.com/dksih/QBM/2022/1/6/2888748215476224/2895505611612160/STEM/6f412529-5038-45a6-a665-1677bc73cb4b.png?resizew=136)
(1)若
,圆柱的母线长等于底面圆的直径,求圆柱的表面积.
(2)证明:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://img.xkw.com/dksih/QBM/2022/1/6/2888748215476224/2895505611612160/STEM/6f412529-5038-45a6-a665-1677bc73cb4b.png?resizew=136)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f7d916aa534e596d9af1263e1b7b668.png)
(2)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b9c1acf1f846cdef031493eabc973a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2977ae4bfa32de8c6f0fb136205c4fe7.png)
您最近一年使用:0次
解题方法
3 . 在正四棱柱
中,
,E在线段
上.
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893437264601088/2894335840870400/STEM/97e8ef2f-1feb-4467-a698-f6240b6c8614.png?resizew=169)
(1)若
平面
,求
的长;
(2)在(1)的条件下,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622a61b260c96966e2527e346f4288ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893437264601088/2894335840870400/STEM/97e8ef2f-1feb-4467-a698-f6240b6c8614.png?resizew=169)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26d8a9d64ad3c8cba28840b41ed7837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
(2)在(1)的条件下,求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
您最近一年使用:0次
名校
4 . 如图,在三棱柱ABC-A1B1C1中,底面ABC是边长为4的等边三角形,∠A1AB=∠A1AC,D为BC的中点.
![](https://img.xkw.com/dksih/QBM/2022/1/6/2888614732439552/2891356822642688/STEM/c6304a8a60314077bf4262aa80f80916.png?resizew=186)
(1)证明:BC⊥平面A1AD;
(2)若△A1AD是等边三角形,求二面角D-AA1-C的正弦值.
![](https://img.xkw.com/dksih/QBM/2022/1/6/2888614732439552/2891356822642688/STEM/c6304a8a60314077bf4262aa80f80916.png?resizew=186)
(1)证明:BC⊥平面A1AD;
(2)若△A1AD是等边三角形,求二面角D-AA1-C的正弦值.
您最近一年使用:0次
2022-01-10更新
|
418次组卷
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10卷引用:广西壮族自治区贵港市桂平市2019-2020学年高二上学期期末数学(理)试题
广西壮族自治区贵港市桂平市2019-2020学年高二上学期期末数学(理)试题河北省邯郸市2019-2020学年高二上学期期末数学试题河北省2019-2020学年高二上学期期末数学试题陕西省西安中学2021届高三下学期第二次模拟考试数学(理)试题河南省焦作市温县第一高级中学2021-2022学年高二上学期11月月考理科数学试题(已下线)专题08向量方法解决角和距离(测)(理科)第一篇 热点、难点突破篇-《2022年高考理科数学二轮复习讲练测》(全国课标版)陕西省西安市高陵区第一中学2021届高三下学期二模理科数学试题四川省宜宾市第四中学校2022-2023学年高二上学期第三学月考试数学(理)试题(已下线)湖南省长沙市雅礼中学2024届高三上学期月考(二)数学试题变式题19-22(已下线)江苏省南京市六校联合体2023-2024学年高三上学期11月期中数学试题变式题19-22
名校
5 . 如图,在四棱锥P-ABCD中,底面ABCD是平行四边形,侧棱PD
底面ABCD,PD=DA=DB,PB⊥BC,E为PB中点,F为PC上一点,且PC=3PF.
![](https://img.xkw.com/dksih/QBM/2022/1/6/2853255502561280/2890704287031296/STEM/f45643cd967e454d937f955fd7b65a44.png?resizew=233)
(1)求证:PC⊥DE;
(2)求平面DEF与平面ABCD夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://img.xkw.com/dksih/QBM/2022/1/6/2853255502561280/2890704287031296/STEM/f45643cd967e454d937f955fd7b65a44.png?resizew=233)
(1)求证:PC⊥DE;
(2)求平面DEF与平面ABCD夹角的余弦值.
您最近一年使用:0次
2022-01-09更新
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523次组卷
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3卷引用:广西蒙山县第一中学2021-2022学年高二上学期期末考试理科数学试题(二)
名校
6 . 如图,在四棱锥
中,
平面ABCD,底面ABCD是矩形,
,M是PD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/adf63804-829e-46bb-90dc-50979aff88b5.png?resizew=173)
(1)证明:
平面PAD.
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4f838bbaa8485a5ebfa128bcf6bd45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/adf63804-829e-46bb-90dc-50979aff88b5.png?resizew=173)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a7841fca64062a1f2112de9e696921.png)
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2021-12-27更新
|
900次组卷
|
4卷引用:广西蒙山县第一中学2021-2022学年高二上学期期末考试理科数学试题(三)
广西蒙山县第一中学2021-2022学年高二上学期期末考试理科数学试题(三)广东省珠海市北师大珠海分校附属外国语学校2021-2022学年高二上学期期末模拟数学试题山西省2021-2022学年高二上学期12月联考数学试题(已下线)2020年高考全国1数学理高考真题变式题16-20题
名校
解题方法
7 . 如图,在四棱锥P-ABCD,底面ABCD是边长为3的正方形,
平面PAD与平面ABCD垂直,E为AP中点,F为CD中点.
![](https://img.xkw.com/dksih/QBM/2021/12/19/2875887209857024/2878723220553728/STEM/7dc50619-890d-480c-9b2f-2a2651ea532c.png?resizew=334)
(1)求证:
平面PBC.
(2)求点C到平面ABP的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffaa891ce9ee0626b33a0519766f0095.png)
![](https://img.xkw.com/dksih/QBM/2021/12/19/2875887209857024/2878723220553728/STEM/7dc50619-890d-480c-9b2f-2a2651ea532c.png?resizew=334)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
(2)求点C到平面ABP的距离.
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2021-12-23更新
|
541次组卷
|
6卷引用:广西河池市2020-2021学年高三上学期期末数学(文)试题
名校
8 . 如图,在几何体
中,底面
是边长为2的正三角形,
平面
,
,且
是
的中点.
![](https://img.xkw.com/dksih/QBM/2021/11/12/2849700677296128/2854736996712448/STEM/c8ac534f-7086-40a8-9d0c-b0124277f4b3.png?resizew=216)
(1)求证:
平面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.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/36723bd074d43a8c98d9bd416020042c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7bcb2d8a6172fe504c2c63e3ebc1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2021/11/12/2849700677296128/2854736996712448/STEM/c8ac534f-7086-40a8-9d0c-b0124277f4b3.png?resizew=216)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a04304f2d4975955d4baabb2deeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee3d16c7bd3fa91ce2848206816eec2.png)
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2021-11-19更新
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564次组卷
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6卷引用:广西贺州市2021-2022学年高二上学期全面质量检测数学(理)试题
解题方法
9 . 如图,在四棱锥
中,
底面
,底面
是边长为2的正方形,
,F,G分别是
,
的中点.
![](https://img.xkw.com/dksih/QBM/2021/11/3/2843506685485056/2848160829898752/STEM/981d0278-360f-4dde-b16b-5e6251ffe524.png?resizew=201)
(1)求证:
平面
;
(2)求平面
与平面
的夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d4c42112e0a22f240ce2ae432e5b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/2021/11/3/2843506685485056/2848160829898752/STEM/981d0278-360f-4dde-b16b-5e6251ffe524.png?resizew=201)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36148e5b0d89ba45bd98b91da00bf2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b60870baa5e3fbc33a749aa5f0a94be.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b60870baa5e3fbc33a749aa5f0a94be.png)
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2021-11-10更新
|
182次组卷
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2卷引用:广西南宁市普通高中联盟2021-2022学年高二上学期期末联考数学(理)试题
名校
10 . 如图,四棱锥
的底面
是平行四边形,
底面
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e624e6ee68b796f70f9d35e78a8aed.png)
(2)若E是棱PC的中点,求直线AD与平面PCD所成的角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e383629efd98f87ef95e1121fd8847c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e624e6ee68b796f70f9d35e78a8aed.png)
(2)若E是棱PC的中点,求直线AD与平面PCD所成的角
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2021-11-08更新
|
1427次组卷
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10卷引用:广西南宁市宾阳中学2021-2022学年高一下学期期末考试数学试题
广西南宁市宾阳中学2021-2022学年高一下学期期末考试数学试题安徽省滁州市定远县民族中学2021-2022学年高二下学期期末数学试题黑龙江省鸡西实验中学2020-2021学年高一下学期期中考试数学试题第13课时 课前 直线与平面垂直的性质(已下线)8.6 空间直线、平面的垂直(精练)-2021-2022学年高一数学一隅三反系列(人教A版2019必修第二册)广东省清远市重点中学2021-2022学年高一下学期期中数学试题云南省昆明市嵩明县2021-2022学年高一下学期期中考试数学试题(已下线)8.6.2直线与平面垂直(第1课时)(练案)-2021-2022学年高一数学同步备课 (人教A版2019 必修第二册)(已下线)高二上学期期中【常考60题考点专练】(选修一全部内容)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)广东省韶关市韶实、榕城、清实、新河、龙实五校2023-2024学年高一下学期5月联考数学试题