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)
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解题方法
2 . 如图,四面体ABCD中,O,E分别是BD,BC的中点,CA=CB=CD=BD=2,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/e2c85236-8f8d-40b5-9744-a9381c8d2e86.png?resizew=200)
(1)求证:
平面BCD;
(2)求点E到平面ACD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65d5853c26657db448af610ac72cca4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/e2c85236-8f8d-40b5-9744-a9381c8d2e86.png?resizew=200)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce03b310edce42191f9fa75a1c909ac.png)
(2)求点E到平面ACD的距离.
您最近一年使用:0次
2022-12-17更新
|
959次组卷
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7卷引用:吉林省四平市第一高级中学2021-2022学年高三上学期期末考试数学(文)试题
吉林省四平市第一高级中学2021-2022学年高三上学期期末考试数学(文)试题河南省郑州市励德双语学校2022-2023学年高三上学期期末考试文科数学试题(已下线)8.6.2直线与平面垂直的判定定理(第1课时)(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)(已下线)8.6.2直线与平面垂直的判定定理(第1课时)(精讲)(1)-【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)(已下线)微专题17 空间中的五种距离问题(1)(已下线)8.6.2 直线与平面垂直(1) -2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)山西省大同市博盛中学2022-2023学年高二下学期期末数学试题
名校
3 . 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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4 . 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)
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2022-12-17更新
|
518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
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
5 . 如图,在
中,已知
.
分别表示
与
;
(2)证明:
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa188acc5e8a29fb7dbeef21397e126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c3accb1b8a5479439beff4259660e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4781e3daa2c4e018ca0ae09bb56abc0f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e308f55bb6e540255758d2519ee30f83.png)
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解题方法
6 . 已知双曲线
的一条渐近线方程为
,一个焦点到该渐近线的距离为
.
(1)求C的方程;
(2)设A,B是直线
上关于x轴对称的两点,直线
与C交于M,N两点,证明:直线AM与BN的交点在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d75ef8d89bb13121bfd3a723554be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9766dfef2a4159f49c7bd349fb36d670.png)
(1)求C的方程;
(2)设A,B是直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdc38632d93f9f67e377e36666baf79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2452dc955b1c9d251edc3cffe8f68ef.png)
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2022-08-27更新
|
1318次组卷
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7卷引用:吉林省四平市第一高级中学2022-2023学年高三上学期开学考试数学试题
吉林省四平市第一高级中学2022-2023学年高三上学期开学考试数学试题湖南省三湘创新发展联合2022-2023学年高三上学期起点调研考试数学试题黑龙江省部分学校2022-2023学年高三上学期8月联考数学试题海南省海口中学2023届高三上学期9月摸底考试数学试题江苏省苏州市张家港市2022-2023学年高三上学期1月期末数学试题(已下线)专题3.16 圆锥曲线中的定点、定值、定直线问题大题专项训练(30道)-2022-2023学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)专题3-4 双曲线大题综合10种题型归类(讲+练)-【巅峰课堂】2023-2024学年高二数学热点题型归纳与培优练(人教A版2019选择性必修第一册)
名校
7 . 在多面体
中,平面
平面ABCD,EDCF是面积为
的矩形,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/8/26/3052759954268160/3053455803826176/STEM/4563ea97675a45c8bdfc6abaffa26254.png?resizew=203)
(1)证明:
.
(2)求平面EDCF与平面EAB夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2fc1129846f37afdafd751627c450d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ea464a0929a33bedd2ee95cdb66ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3402ea855e2ae2dcd98f607bef4fdd6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a75b1354b8b783a65ee5e3bc596a976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://img.xkw.com/dksih/QBM/2022/8/26/3052759954268160/3053455803826176/STEM/4563ea97675a45c8bdfc6abaffa26254.png?resizew=203)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cade9d1bac990f2014ff8310613e2613.png)
(2)求平面EDCF与平面EAB夹角的余弦值.
您最近一年使用:0次
2022-08-27更新
|
453次组卷
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7卷引用:吉林省四平市第一高级中学2022-2023学年高三上学期开学考试数学试题
名校
解题方法
8 . 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
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750次组卷
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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
9 . 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
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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
解题方法
10 . 已知数列
的首项为1,满足
,且
,
,1成等差数列.
(1)求
的通项公式;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a64135412e48c1164a2c60042c80c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4fc983acad74f5cf3d4168edac85b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e503e95b7980f0bc00f99163be194f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c57511234ca14acc3495f189c0742c1.png)
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2022-08-27更新
|
499次组卷
|
5卷引用:吉林省四平市第一高级中学2022-2023学年高三上学期开学考试数学试题