名校
解题方法
1 . 已知
为定义在
上不恒为
的函数,对定义域内任意
,
满足:
,
.且当
时,
.
(1)证明:
;
(2)证明:
在
单调递减;
(3)解关于
的不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e2db881e8f568503e74978583d01dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccaa6e503b61e9ae78d8439cba2e328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bfb865cbc42d512717bc7fd9acfb3.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6374a0510e93e18f5db8d1db8a02c2.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,椭圆
的离心率为
,其长轴的两个端点与短轴的一个端点构成的三角形的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/3c0185ac-cc25-48f4-bd43-909fbf8778d7.png?resizew=176)
(1)求椭圆C的标准方程;
(2)过点
的直线l交C于A、B两点,交直线
于点P.若
,
,证明:
为定值,并求出这个定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/3c0185ac-cc25-48f4-bd43-909fbf8778d7.png?resizew=176)
(1)求椭圆C的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a29ba49963134a7232fa8574105fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6ec665d04d264ba699172a248072f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34fd6373131aec5fc5fe61e67e37496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
您最近一年使用:0次
2023-11-10更新
|
931次组卷
|
6卷引用:重庆市南开中学校2023-2024学年高二上学期期中数学试题
重庆市南开中学校2023-2024学年高二上学期期中数学试题重庆市大渡口区巴渝学校2023-2024学年高二上学期期中数学试题(已下线)宁夏回族自治区石嘴山市第三中学2023-2024学年高二上学期12月月考数学试题河北省石家庄市第二中学2023-2024学年高二上学期第三次月考(12月)数学试题四川省内江市第六中学2023-2024学年高二上学期第二次月考数学试题宁夏石嘴山市第三中学2023-2024学年高二上学期第二次月考数学试卷
名校
解题方法
3 . 已知函数
为其极小值点.
(1)求实数
的值;
(2)若存在
,使得
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae35146e440cfeaf60ab7c8b3c2ff5a.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
您最近一年使用:0次
4 . 已知数列
满足
,
,且
.
(1)求证:数列
为等比数列;
(2)若
,求数列
的前n项的和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693734765399876e9e93cdb110231c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d292da83f1502449e6118c83e4a94d5f.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82c65a855b1eed9c43e6829f6c3bffb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34f2503b45b54100a1c9f9b000860c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
名校
解题方法
5 . 已知等差数列
是递增数列,记
为数列
的前n项和,
,且
,
,
成等比数列.
(1)求数列
的通项公式;
(2)若
,数列
的前n项和为
,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be9c9b05fd84ac9256d49a5a553af5.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216876de04325fd250c38c485cbc34b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9928e46511e601913619a427ded84a3.png)
您最近一年使用:0次
2023-07-05更新
|
743次组卷
|
5卷引用:重庆市第一中学校2022-2023学年高二下学期期末数学试题
重庆市第一中学校2022-2023学年高二下学期期末数学试题广东省揭阳市普宁国贤学校2024届高三上学期开学考试数学试题广东省揭阳市惠来县第一中学2023-2024学年高二上学期期末联合质量检测数学试题四川省德阳市第五中学2023-2024学年高二下学期五月月考数学试卷(已下线)专题01 数列(6大考点经典基础练+优选提升练)-【好题汇编】备战2023-2024学年高二数学下学期期末真题分类汇编(新高考专用)
名校
解题方法
6 . 如图,四边形
是圆柱下底面的内接四边形,
是圆柱底面的直径,
是圆柱的一条母线,
,
,点
在线段
上,
.
(1)求证:平面
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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.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/4cb83c7dd55dd00255d8f7d90b24799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/6/ab596882-f23d-435b-944e-1c8c2f05c5e8.png?resizew=121)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/054a5771a83e60b6c7a1a471c445c3b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7495688c046142f688c822209c0e968e.png)
您最近一年使用:0次
名校
解题方法
7 . 在四棱锥
中,底面
为直角梯形,
,
,
,
,
为棱
上一点,且
.
(1)求证:平面
平面
;
(2)若
,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/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c4f1f769680754aec59e0f625f1550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c9d5c0b9d7b7cf3e14f56bc3b4ac2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491c3a4f72b84ebadd28b90711435adc.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/e4611ceb2a28f7a7e4d24266d7f99b22.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/9/395518f0-82cd-4a33-b755-caa713fc956e.png?resizew=153)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87eca3d5f05646f258cf379092ca6874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a2169021df75320ae386366ccaf80a.png)
您最近一年使用:0次
名校
8 . 如图,已知在三棱锥
中,
为
的中点.
(1)证明:
;
(2)若
,
为平行四边形,求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4faa18f5d734ff57eda57a5b714421bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/19/c233e5ae-e642-4c27-bb07-648161cc3251.png?resizew=172)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d72a007e3c4a134956b0e3fbde5f46.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d01872723102269f05c9d1b77c6e34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27298fab52d282c92ca30fd0a9878c80.png)
您最近一年使用:0次
9 . 已知数列
满足
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa5700d9cdf20dd4bd05bf597229065.png)
(1)记
,求证:
为等比数列;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa5700d9cdf20dd4bd05bf597229065.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f2cd7832afe02641ca767c8f0b45a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde513254e2cff153fdc6306ebc1c4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9a0d7150fb24be3e28ef7f0e18be93.png)
您最近一年使用:0次
2023-07-27更新
|
1573次组卷
|
4卷引用:重庆市第一中学校2024届高三上学期九月测试数学试题
名校
解题方法
10 . 已知
,非空集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898fb2bc424ef45953524510f82ae36f.png)
(1)证明:
的充要条件是
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d7ed6f4b0e08cd887d2fdc2a5e37e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898fb2bc424ef45953524510f82ae36f.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8cdf3fa28452900663354a54a8f3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a783088120d67cc98936081e80fb7f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98816a922b6dd4704b3f95adc77cb7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次