1 . 如图,在直四棱柱
中,
,
为
的中点,点
在
上,且满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb691dff093af0a743e0b6b30fa23ea6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/5a63d9f5-89f8-4b43-b2dd-6fb252579472.png?resizew=173)
(1)求直四棱柱
的侧面积
(2)设点
在
上,且
,试判断直线
是否在平面
内,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccbf4761fe3449cc2fbdc87cc3d007b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb691dff093af0a743e0b6b30fa23ea6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/5a63d9f5-89f8-4b43-b2dd-6fb252579472.png?resizew=173)
(1)求直四棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d8eb4a9f462ca0c1d49c3fe91e720d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef59d2f5b016e64c9d09dda3193bd9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
您最近一年使用:0次
解题方法
2 . 如图,在四棱锥
中,
平面
,底面
是矩形,
,
,
是
上的点,直线
与平面
所成的角是
,则
的长为______ .
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e20837a66df1185d5fbed39060e8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e7c0d7e49c2025a68fd71fb6a661bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37793a3a810e823e10c340986f55ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e2fd1d179d6533a26734ea393eebc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
您最近一年使用:0次
解题方法
3 . 在正方体中,设
,若二面角
的平面角的正弦值为
,则实数
的值为
您最近一年使用:0次
2024-01-09更新
|
253次组卷
|
4卷引用:3.4.3 求角的大小(九大题型)(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)
(已下线)3.4.3 求角的大小(九大题型)(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)安徽省亳州市第十八中学2023-2024学年高二上学期全市统考第一次模拟考试数学试卷(已下线)专题13 空间向量的应用10种常见考法归类(4)河南省南阳市桐柏县2023-2024学年高二上学期期末质量检测数学试题
名校
4 . 在三棱锥
中,
是边长为4的正三角形,平面
平面
,
,
分别为
的中点.
(1)证明:
;
(2)求二面角
的正弦值的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78307cd417504554a4e2276fe24d1162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d7bde9982692ba3a587e7f6e3b46a4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46750bbbe806863d5d70c8f4eaf6942.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/102c72db-a448-47a8-b02c-687885657dab.png?resizew=173)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90fa715d27ae43ec1e157226bc9dea54.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6177f4876d8f05b8fe9a9618756ad22f.png)
您最近一年使用:0次
2024-01-07更新
|
1787次组卷
|
14卷引用:上海市市西中学2024届高三上学期期中数学试题
上海市市西中学2024届高三上学期期中数学试题江苏省扬州市邗江中学2019-2020学年高二(新疆班)下学期期中数学试题陕西省西安市陕西师范大学附属中学渭北中学2023届高三三模理科数学试题黑龙江省哈尔滨市兆麟中学2023-2024学年高二上学期第一次月考数学试题江苏省南京市六校联合体2023-2024学年高三上学期10月联合调研数学试题浙江省杭州市富阳区实验中学2023-2024学年高二上学期9月摸底考试数学试题福建泉州城东中学、南安华侨中学、石狮八中、福建泉州外国语学校四校2023-2024学年高二上学期期中考试数学试卷吉林省辽源市田家炳高中友好学校2024届高三上学期第七十六届期末联考数学试题四川省成都市2023-2024学年高二上学期期末练习数学试题(3)河南省郑州市第十八中学2023-2024学年高二上学期期末模拟数学试题(三)广东省广州市广东实验中学2024届高三上学期大湾区数学冲刺卷(三)湖南省长沙市雅礼中学2024届高三月考试卷数学(六)广东番禺中学2023-2024学年高三第六次段考数学试题广东省广州市番禺中学2024届高三第六次段考数学试题
解题方法
5 . 如图正方体
中,棱长为
,
、
分别为
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/6e89306e-36f5-4e7b-9af1-60b1d9262c99.png?resizew=165)
(1)求证:
;
(2)求
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/6e89306e-36f5-4e7b-9af1-60b1d9262c99.png?resizew=165)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aeee5320aae7818cd11c84cc632642f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554b3b4c5ce7aca81becc07ed4903736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9210bbf97012e7da54167521d0d0a6.png)
您最近一年使用:0次
名校
6 . 如图,在
中,
,斜边
,以直线AO为轴旋转
得到
,且二面角
是直二面角,动点D在斜边AB上.
(1)求证:平面
平面
;
(2)求CD与平面
所成角中最大角的正切值;
(3)当D为AB中点时,继续以直线AO为轴旋转
得到
,当直线ED与OB所成角为
时,求点E位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/991c8373be20b4325ba779e4dfdc8b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/864aa0f490f42c358d1550c99bd81c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19c1bcb8431ae315ecd29c6478d3eff.png)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a55c40bb7437081d8e669974c8d1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
(2)求CD与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
(3)当D为AB中点时,继续以直线AO为轴旋转
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d0c1e3791bf2338e8943067ec404ba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/89081e53-6664-4b7b-85ef-dfbaef2d2c22.png?resizew=116)
您最近一年使用:0次
名校
解题方法
7 . 如图,在底面是菱形的四棱锥
中,
底面
,
,
是棱
上一点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/a29246a8-747d-4e9e-9b06-e0646ad4cb68.png?resizew=161)
(1)求二面角
的大小;
(2)在棱
上是否存在一点
,使得
平面
?证明你的结论.
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb9784c7b01e0803fd4155b724516b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b17e6cbaf17c2ba0a1d333f02aebf58.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/a29246a8-747d-4e9e-9b06-e0646ad4cb68.png?resizew=161)
(1)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f4096ff62b4f29932cd8c6eef661a3.png)
(2)在棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8ccd4181f956f6e0140bf0ab8f0716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
8 . 如图:PA⊥平面ABCD,ABCD是矩形,PA=AB=1,点F是PB的中点,点E在边BC上移动.
(1)点E为BC的中点时,试判断EF与平面PAC的位置关系,并说明理由;
(2)无论点E在边BC的何处,PE与AF所成角是否都为定值,若是;若不是,请说明理由;
(3)当BE等于何值时,二面角P﹣DE﹣A的大小为45°.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/1c9a2849-1060-4c04-8ad5-4c6b34694a7d.png?resizew=144)
(1)点E为BC的中点时,试判断EF与平面PAC的位置关系,并说明理由;
(2)无论点E在边BC的何处,PE与AF所成角是否都为定值,若是;若不是,请说明理由;
(3)当BE等于何值时,二面角P﹣DE﹣A的大小为45°.
您最近一年使用:0次
9 . 如图,四棱锥
中,
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd1319aa2beb98d83b82491cd9de228f.png)
,
为
的中点,
与
相交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/e4a22955-e471-4282-be84-99678b9272ae.png?resizew=166)
(1)求证:
平面
;
(2)求证:
平面
;
(3)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95475bfc06e884754eb4a455c3f434e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd1319aa2beb98d83b82491cd9de228f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f2d58e450193da0539a687dabf0bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/e4a22955-e471-4282-be84-99678b9272ae.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4c26f3f4d96117f087400a0f32ece8.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
您最近一年使用:0次
10 . 如图,在四棱锥
中,底面四边形
为菱形,
平面
,过
的平面交平面
于
.
平面
;
(2)若平面
平面
,四棱锥
的体积为
,求平面
与平面
夹角的余弦值.
![](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/a8bc5d8308a060d6068cfc9f69fe79e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/519a9076a764e5731ab4c661c5c9bea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b70cef0b79ca64acbb67dc667fc53b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf227a1e3c2f659eb66b91b85e4a947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9da6af3fa0ad84908d77ff84983a24a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb8697622fb9d281cf44feb4adaf14a.png)
您最近一年使用:0次
2023-12-25更新
|
307次组卷
|
3卷引用:数学(上海卷02)