名校
解题方法
1 . 如图,在四棱锥
中,平面
平面
,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/4/27/2967147992440832/2974320648839168/STEM/bb190a63-d2b5-4b6b-9c77-d9bc870a2ff5.png?resizew=203)
(1)求四棱锥
的体积;
(2)在线段
上是否存在点
,使得
平面
?若存在,求
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d31600cba2d5256c7e78b6122d6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8254b52b379a420c17d38334940b073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e2a44d05b1d387150c4b359e021ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef219a0acb1b2f8fce339ecdbeddaaf.png)
![](https://img.xkw.com/dksih/QBM/2022/4/27/2967147992440832/2974320648839168/STEM/bb190a63-d2b5-4b6b-9c77-d9bc870a2ff5.png?resizew=203)
(1)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcfacd208d769d01f1d4ef20313cd869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a6ce188523ed6ab24fa2bfa6e17fdb.png)
您最近一年使用:0次
2022-05-07更新
|
684次组卷
|
4卷引用:山东省德州市夏津育中万隆中英文高级中学2021-2022学年高一下学期第二次月考数学试题
山东省德州市夏津育中万隆中英文高级中学2021-2022学年高一下学期第二次月考数学试题河南省豫西名校2021-2022学年高三下学期4月教学质量检测文科数学试题(已下线)文科数学-2022年高考考前20天终极冲刺攻略(四) (6月1日)(已下线)第03讲 空间直线、平面的平行 (精讲)-2
名校
2 . 如图,在直三棱柱
中,
为
的中点.
![](https://img.xkw.com/dksih/QBM/2022/9/26/3074832366305280/3075342448058368/STEM/1b51156345f348d4901e8bdac4eafe94.png?resizew=214)
(1)记平面
与平面
时交线为
, 证明:
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df226b960fe63b037a0b85443fd49f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/2022/9/26/3074832366305280/3075342448058368/STEM/1b51156345f348d4901e8bdac4eafe94.png?resizew=214)
(1)记平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68a7bf0da4f7c6f739d2e2461ad9b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e450f5f4225c000c2e8ea1cc14c140f2.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7692c644180b475efb60304ae8f811fc.png)
您最近一年使用:0次
2022-09-27更新
|
689次组卷
|
6卷引用:江苏省扬州、盐城、南通部分学校2022届高三上学期10月第一次大联考数学试题
江苏省扬州、盐城、南通部分学校2022届高三上学期10月第一次大联考数学试题江苏省盐城 、淮安、 宿迁 、如东等地2021-2022学年高三上学期第一次大联考数学试题福建省龙岩市第一中学2022届高三上学期第三次半月考数学试题(已下线)考点34 二面角【理】-备战2022年高考数学典型试题解读与变式(已下线)第53讲 章末检测八江苏省苏州市张家港高级中学2021-2022学年高三上学期期中模拟数学试题
名校
3 . 如图,四边形
是正方形,
平面
,且
.
![](https://img.xkw.com/dksih/QBM/2021/3/8/2673297234960384/2674952115773440/STEM/74d8911c-2415-49b6-b16a-8cef53ade8dd.png)
(1)求证:
平面
;
(2)若
,求直线
与平面
所成角的正弦值.
![](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/04a2de138c6edf84181880446b85be2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91708c4508371f08556e76e31c7cb9ea.png)
![](https://img.xkw.com/dksih/QBM/2021/3/8/2673297234960384/2674952115773440/STEM/74d8911c-2415-49b6-b16a-8cef53ade8dd.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a04304f2d4975955d4baabb2deeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db280565a4af5fa94c5468f770e973d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9068f29d671d76d1e95ba3a4eaff5b96.png)
您最近一年使用:0次
2021-03-10更新
|
1250次组卷
|
2卷引用:河北省沧州市第一中学2020-2021学年高二下学期第一次月考数学试题
名校
4 . 如图,在四棱锥
中,底面
为正方形,
、
、
、
分别为
、
、
、
的中点.
![](https://img.xkw.com/dksih/QBM/2022/1/5/2888023032455168/2888777436717056/STEM/4b59e41050f8425ea785f453f7596d20.png?resizew=241)
(1)证明:
平面
;
(2)若平面
平面
,
为等边三角形,求二面角
的正弦值.
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/2022/1/5/2888023032455168/2888777436717056/STEM/4b59e41050f8425ea785f453f7596d20.png?resizew=241)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcafa398cc6b6079883e7ad153eb62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6221be113e161825e54d48a2fb16d516.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290a37874cd284fb1a8c864769ce50c9.png)
您最近一年使用:0次
2022-01-06更新
|
712次组卷
|
2卷引用:江苏省南京市中华中学2022-2023学年高三上学期大练(1)数学试题
名校
5 . 如图,在四棱锥
中,
,AB⊥BC,CD=2AB,PA⊥平面ABCD,E为PD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/c9d927e1-c1b5-4752-b8aa-d547dd1118e6.png?resizew=152)
(1)证明:
平面PBC;
(2)若PA=CD=2BC,求AE与面PBD所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/c9d927e1-c1b5-4752-b8aa-d547dd1118e6.png?resizew=152)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc521258fcaeaf7acffc5ae98c3af6d9.png)
(2)若PA=CD=2BC,求AE与面PBD所成角的正弦值.
您最近一年使用:0次
2022-11-19更新
|
632次组卷
|
2卷引用:黑龙江省哈尔滨师范大学附属中学2022-2023学年高三上学期11月月考数学试题
名校
6 . 如图,正三棱柱
的所有棱长都等于2,
分别为
,
,AB的中点.
(1)求证:直线
平面
;
(2)求异面直线
与
所成角的余弦值;
(3)求
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/19/635e96b4-c4c9-49bb-b8f0-aeb2abc72d69.png?resizew=156)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c1aea92b6c68a392aca25320aca0459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fec5bd77cfc1313bc200480cc66c766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fec5bd77cfc1313bc200480cc66c766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
您最近一年使用:0次
名校
7 . 如图,直三棱柱ABC-A1B1C1中,M为BC的中点,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/c74b04d7-99c5-488c-b277-c1bc070dc8a9.png?resizew=155)
(1)证明:A1B∥平面AMC1;
(2)求异面直线
与
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cfb38323095090b0fe5eee70b24210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1ac2e11788860424508ea9e80cf89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffa995ac1b73394a4cecf085527f5e7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/c74b04d7-99c5-488c-b277-c1bc070dc8a9.png?resizew=155)
(1)证明:A1B∥平面AMC1;
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ef601ca1f9c4c031adab4ffed297f0.png)
您最近一年使用:0次
2022-12-13更新
|
581次组卷
|
2卷引用:黑龙江省哈尔滨市第四中学校2022-2023学年高二上学期第一次月考数学试题
8 . 如图,在四面体
中,
平面
,
是
的中点,
是
的中点,
是线段
上的一点,
.
(1)若
,证明:
平面
;
(2)若
,且二面角
为直二面角,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60721d2819b6860fc60278bf69391bb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/28/2bcd525c-2c09-460b-b9c1-e6337e922e67.png?resizew=160)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8845fadc307f1d308410e829becedd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9abe6e8d1f4f1e8bdc46ddbae0cd789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257b1d2fad68e80e567f981a6e05fc2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ec900e196d2d83637ee7c66dc5d2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
解题方法
9 . 如图,在正方体
中,
,
,
分别是棱
,
的中点,设
是线段
上一动点.
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bc5d8308a060d6068cfc9f69fe79e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05479ce59da01ea9c5bef3f20efadb41.png)
您最近一年使用:0次
10 . 如图,在长方体
中,
,
分别是线段
,
的中点.
平面
;
(2)若
,直线
与
所成角的余弦值是
,求四面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a407b262c22419f73396170ecdc849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635a764c14e95e53a7a160d84706a449.png)
您最近一年使用:0次
2022-07-10更新
|
622次组卷
|
6卷引用:湖北省黄冈市黄州中学(黄冈外校)2022-2023学年高一下学期第七次阶段性测试数学试题
湖北省黄冈市黄州中学(黄冈外校)2022-2023学年高一下学期第七次阶段性测试数学试题湖南省五市十校教研教改共同体2021-2022学年高一下学期期末数学试题安徽省宣城市三校2022-2023学年高二上学期期初联考数学试题福建省泉州第一中学2022-2023学年高二上学期暑假返校数学试题(已下线)8.5.3 平面与平面平行(第2课时) 平面与平面平行的性质(分层作业)-【上好课】北京市第八十中学2023-2024学年高一下学期期中考试数学试题