1 . 如图,在四棱锥
中,
平面
,
,且
,
,
为线段
上一点,
,且
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/e4c0bcf1-471d-46aa-9e4c-2f062dcb24fe.png?resizew=208)
(1)证明:
平面
;
(2)求证:平面
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/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd8c48af35b84b863cea79e2bd81c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f14fe22376f70a50752d3e146b8e1b2.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/eeef1db30212433062b3297569a7aafd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/e4c0bcf1-471d-46aa-9e4c-2f062dcb24fe.png?resizew=208)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89571b0ed015bc7533d44b73a74ba309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c5757f787d98f9a46777324b69ad672.png)
您最近一年使用:0次
2 . 如图,长方体
中,
,G是
上的动点.
(l)求证:平面ADG![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
;
(2)判断
与平面ADG的位置关系,并给出证明;
(3)若G是
的中点,求二面角G-AD-C的大小;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d20d9a8058985d9847ddd99046fdb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
(l)求证:平面ADG
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
(3)若G是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/6609d6c0-f9a4-47a1-8f4d-e37bc2936a42.png?resizew=209)
您最近一年使用:0次
解题方法
3 . 已知函数
.
(1)求函数
在点
处的切线方程;
(2)求函数
的最小值;
(3)函数
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e426f7804ba33a506c8645404cdb95c.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d06e33d079ac1649ee5eea8f61de7cf.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6289962049a906dde1d22ecfc989813c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfd640a0bc9642cfecddaab6d593a10.png)
您最近一年使用:0次
4 . 已知数列
为递增等差数列,数列
为等比数列,且
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292b6a224fc7539b594c8b73d66f8848.png)
(1)求数列
与
的通项公式:
(2)对任意的正整数
,设
,求数列
的前
项和;
(3)求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7c1da88d583a3ae4818b9ccc3b1242c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c25a09929ddd94b69868d3048a79a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292b6a224fc7539b594c8b73d66f8848.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)对任意的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/230238beeb5b5f30228c16247c63ce24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
(3)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e9dab25cd410e93bf7de3abb619b11.png)
您最近一年使用:0次
5 . 在如图所示的几何体中,
平面
是
的中点,
,
.
(1)求证:
平面
;
(2)求平面
与平面
所成夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3deeff8906bc596d92a7f177e854dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ad3a578f403b9e6b97fa2dc955fc11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5338f819dae23e41eb8d05cd1c227f45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/a5d9631b-49bf-480a-9899-174a984b0601.png?resizew=125)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e0bd4b30dc777ac9da80f6baa3eb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b9d54cbbf601f4583659771eb534997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65277734669566578cbb7d690bb200fb.png)
您最近一年使用:0次
6 . 如图,在四棱线中,底面
为矩形,
平面
,点
是棱
的中点.
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30067b7b236d17af8a462f96a58d11bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68a7bf0da4f7c6f739d2e2461ad9b7.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaa712e64750e3e2843bae68ebad6d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d9fc62e8d6c61f0b1338a939b2f109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68a7bf0da4f7c6f739d2e2461ad9b7.png)
您最近一年使用:0次
解题方法
7 . 如图,在直三棱柱
中,
,M为
中点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/a7d07e55-43a0-473f-9d91-7e9b66b6289f.png?resizew=180)
(1)证明:平面
平面
;
(2)求直线
与平面
所成角的大小;
(3)点N在线段
上,点N到平面
的距离为2,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8cb98c0adee7ca698d8b17dacb845b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/a7d07e55-43a0-473f-9d91-7e9b66b6289f.png?resizew=180)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a2712f9cc643d4983d37c9dfe880ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfc67f86e81cdd466230531ac658016.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
(3)点N在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3653ada76ba0c8afe9d57c8e7832c6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
您最近一年使用:0次
8 . 在三棱柱
中,
底面
,点
分别是
的中点,且
.
平面
;
(2)求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8bfe2553e852df73185d017c0a62fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695b0b58e60dd3d2da6388848d373a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cf12afb5ba6ced5fb5aaaddcb4bd9e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b9a3f868837555eb40234b3375f4a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9961e091f180e964a962adf6916f33c8.png)
您最近一年使用:0次
2023-06-20更新
|
610次组卷
|
4卷引用:2024届天津市河东区普高高中学业水平合格性考试模拟预测数学试题
2024届天津市河东区普高高中学业水平合格性考试模拟预测数学试题江苏省常州市联盟学校2022-2023学年高一下学期5月学情调研数学试题(已下线)模块四 专题1 重组综合练(江苏)(已下线)专题训练:线线、线面、面面平行与垂直证明大题-同步题型分类归纳讲与练(人教A版2019必修第二册)
名校
解题方法
9 . 设椭圆
的一个顶点与抛物线
的焦点重合,
,
分别是椭圆的左、右焦点,离心率
,过椭圆右焦点
的直线
与椭圆
交于
,
两点.
(1)求椭圆
的方程;
(2)若
,求直线
的方程;
(3)已知直线
斜率存在,若
是椭圆
经过原点
的弦,且
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088fcdd595455906a1a7080d630611f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd38f55d7cdae1de6e2a2e2c6e1e57d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe103266847b78a377011990c35a7d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24caeb80a748bcbc9dc33cd430a5aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1a3c79973f7fa2547db303c1279277.png)
您最近一年使用:0次
2023-04-25更新
|
1603次组卷
|
3卷引用:天津市河东区2023届高三二模数学试题
名校
解题方法
10 .
已知函数
是定义在
上的奇函数,且
.
(1)求函数
的解析式;
(2)判断当
时,函数
的单调性,并用定义证明;
(3)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02afb6613b182e45f56cd05e5fe838c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8717af5b57ca8eb3402b17118fec7a04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad19d9b057bd7b2207dabe260e7bde86.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab87accf1942ab80def96d12ef173163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/215d571a8650b5a55b27669ef9337c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2023-06-14更新
|
911次组卷
|
9卷引用:天津市第七中学2022-2023学年高二下学期5月月考数学试题
天津市第七中学2022-2023学年高二下学期5月月考数学试题天津市六校2019-2020学年高一上学期期中联考数学试题(已下线)【南昌新东方】江西省南昌市雷式三中2020-2021学年高一上学期11月期中数学试题5天津市实验中学滨海学校2021-2022学年高一上学期期中数学试题天津市天津中学2022-2023学年高一上学期期中数学试题安徽省滁州市定远县育才学校2022-2023学年高三上学期11月期中考试数学试题(已下线)第三章 函数的概念与性质 章末测试(提升)-《一隅三反》(已下线)专题3.2 函数的基本性质【十大题型】-举一反三系列广东省梅州市蕉岭县三校2023-2024学年高一上学期10月联考数学试题