1 . 已知函数
.
(1)若
,证明:
,
,
这三个数中至少有一个数不大于1;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d7a0b3c201516af9ebf29d630c0c61c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44b8f44366b60404a139f43260e76a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0777bb66e22131bcdff0b722b7731cc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eae9ba258299eb489b490594397e23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6771bdb173df5236b6c83dc64a099b.png)
您最近一年使用:0次
名校
2 . 如图,在多面体ABCDE中,平面ABCD⊥平面ABE,AD⊥AB,
,
,AB=AD=AE=2BC=2,F是AE的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/8eeaf36b-1361-4822-9905-1b6d005ba2a4.png?resizew=171)
(1)证明:
平面CDE;
(2)求平面ABCD与平面CDE的夹角余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daee939979849ab35efd299ce762a7bb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/8eeaf36b-1361-4822-9905-1b6d005ba2a4.png?resizew=171)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d32e76582bf550593fdef53e081225.png)
(2)求平面ABCD与平面CDE的夹角余弦值.
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3 . 如图,在四棱锥
中,
,
,底面
为矩形.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/1863391b-6c40-4eaf-87f6-30bc186af820.png?resizew=210)
(1)证明:平面
平面
;
(2)若
,
,求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a15a004f7d47ed595f063e60075223a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b07e317ffe7859e81b42ef4970e344a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/1863391b-6c40-4eaf-87f6-30bc186af820.png?resizew=210)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7b6d04f024ca05cdfacc8ce9137c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88c44f558705de3bcefcfc0ece96b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
您最近一年使用:0次
2022-12-17更新
|
518次组卷
|
3卷引用:吉林省四平市第一高级中学2021-2022学年高三上学期第三次月考数学(文)试题
吉林省四平市第一高级中学2021-2022学年高三上学期第三次月考数学(文)试题广西师范大学附属中学2022-2023学年高二上学期11月期中考试数学试题(已下线)8.6.3平面与平面垂直(第1课时平面与平面垂直的判定定理)(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
名校
解题方法
4 . 已知双曲线
的一条渐近线方程为
,点
在双曲线
上.
(1)求双曲线
的标准方程;
(2)过定点
的动直线
与双曲线
的左、右两支分别交于
两点,与其两条渐近线分别交于
(点
在点
的左边)两点,证明:线段
与线段
的长度始终相等.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c204834608f1a8fba15747210dd7c5af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e0e6f0e61d018db53aba289fc8be45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
您最近一年使用:0次
2022-12-16更新
|
378次组卷
|
4卷引用:吉林省四平市第一高级中学2021-2022学年高二上学期第三次月考数学试题
名校
解题方法
5 . 如图,在多面体
中,平面
平面
,
,
,
,
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/7af2a0b9-448d-4234-b965-1912fb9a601f.png?resizew=182)
(1)证明:
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daee939979849ab35efd299ce762a7bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b6ab5352535496210b57b7bd73876b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/7af2a0b9-448d-4234-b965-1912fb9a601f.png?resizew=182)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8ccd4181f956f6e0140bf0ab8f0716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
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2022-12-17更新
|
750次组卷
|
7卷引用:吉林省四平市第一高级中学2021-2022学年高三上学期第四次月考数学(文)试题
名校
6 . 已知函数
,
.
(1)若
,求曲线
在点
处的切线方程;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f985e28db62d7f3ad9980f336cc1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa935ab9bd6d5a7da63efd2c28d70c53.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec814886f074a9392a4ed3a097732e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85ca950a70855d770f47f4025f2e14e.png)
您最近一年使用:0次
2022-12-17更新
|
323次组卷
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3卷引用:吉林省四平市第一高级中学2021-2022学年高三上学期第三次月考数学(文)试题
名校
7 . 已知函数
.
(1)判断
的单调性.
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3eb9bc0543ce13125c3ce122436e611.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a83c37ee4e8ff55553e10b1a767c422.png)
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2022-01-04更新
|
540次组卷
|
5卷引用:吉林省四平市第一高级中学2021-2022学年高三上学期第四次月考数学(文)试题
吉林省四平市第一高级中学2021-2022学年高三上学期第四次月考数学(文)试题河南省2021-2022学年高三上学期第五次联考文科数学试题 (已下线)专题24 导数(理科)解答题20题-备战2022年高考数学冲刺横向强化精练精讲陕西省安康中学本部和分校2021-2022学年高二上学期期末联考文科数学试题陕西省安康市安康中学本部和分校2021-2022学年高二上学期期末数学(文)试题
名校
解题方法
8 . 如图,直四棱柱
中,底面ABCD为菱形,且
,
,E为
的延长线上一点,
平面
,设
.
![](https://img.xkw.com/dksih/QBM/2021/11/5/2844833703141376/2847016515125248/STEM/fc9289490f9b486abc136a51bb4101c0.png?resizew=209)
(1)求平面EAC的法向量;
(2)在线段
上取一点P,满足
,求证:
平面EAC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeed487430a5b8a330f2d0c52166521a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da81a007b14af667599765c89d5b8530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fefd8229243bcbee5ac197740e6c66ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://img.xkw.com/dksih/QBM/2021/11/5/2844833703141376/2847016515125248/STEM/fc9289490f9b486abc136a51bb4101c0.png?resizew=209)
(1)求平面EAC的法向量;
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26958f65c7357a06d8293d13d668fbf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24579dca7ff1542ae019fc36110dddbe.png)
您最近一年使用:0次
2021-11-08更新
|
184次组卷
|
2卷引用:吉林省四平市普通高中2021-2022学年高二上学期期中考试数学试题
名校
9 . 如图,在三棱柱
中,
底面
,D为
的中点,点P为棱
上的动点(不包括端点),
,
,
.
![](https://img.xkw.com/dksih/QBM/2021/10/9/2825589920301056/2832545602781184/STEM/677237cd548b4f2a9bcf105dae5516fa.png?resizew=166)
(1)求证:
平面
;
(2)求直线
与平面
所成角的正弦值的最大值.
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ae8a050d7159d4296c2409e5bc0bf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://img.xkw.com/dksih/QBM/2021/10/9/2825589920301056/2832545602781184/STEM/677237cd548b4f2a9bcf105dae5516fa.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
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2021-10-19更新
|
368次组卷
|
3卷引用:吉林省四平市第一高级中学2021-2022学年高二上学期10月月考数学试题
吉林省四平市第一高级中学2021-2022学年高二上学期10月月考数学试题山西省大同市新世纪中学2021-2022学年高二上学期第一次月考数学试题(已下线)河南省南阳市2022-2023学年高三上学期期末数学(理)试题变式题16-20
名校
10 . 设集合
.
(1)证明:若
,则
:
(2)已知集合
,若
的子集共有
个,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e639106311b8650c63109e02c9bae25.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a0ac8b620b5eca9daa7276712935ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae4202aa738ce97198687198555c84c.png)
(2)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78e72a3713b736a92a1cc9b48504e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2021-09-05更新
|
685次组卷
|
4卷引用:吉林省四平市第一高级中学2020-2021学年高三上学期第一次月考数学(理)试题