1 . 已知函数
,设曲线
在点
处的切线与x轴的交点为
,其中
为正实数.
(1)用
表示
;
(2)求证:对一切正整数n,
的充要条件是
;
(3)若
,记
证明数列
成等比数列,并求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7b0deaff280ebbee0f91be5acd20d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641fec779880f75fa8ee6782f3350402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edeb4aa8a3ca0261e0161fd7fa8bde97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3002f56900c2924bfd79fc3865b0a02e.png)
(2)求证:对一切正整数n,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b3c80e774501722f46f97800f1d400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3fd5fd833041ae95d8b7f8d2897e35.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4223bd6ee8f82d59d244371fbcddc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfe65f891c54780bcf1ed6a9f8a0f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
您最近一年使用:0次
2022-11-23更新
|
1069次组卷
|
3卷引用:2007年普通高等学校招生考试数学(理)试题(四川卷)
真题
解题方法
2 . 已知m,n为正整数.
(1)用数学归纳法证明:当
时,
;
(2)对于
,已知
,求证
,
;
(3)求满足等式
的所有正整数n.
(1)用数学归纳法证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d201fdbbff12486f31b5688fc0a0747e.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831608f09609c37f757f5bfcd01253f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186c794ebbde3237056af29cb97778f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c70b3e66c0852233e54c1ba772fa97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91f85fc4d2f3894351dd2c4d4f5c975.png)
(3)求满足等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a4cace6fc5c0f94904a33a643adadf.png)
您最近一年使用:0次
2022-11-09更新
|
1343次组卷
|
4卷引用:江苏省苏州市吴中区2018-2019学年高二下学期期中数学(理)试题
江苏省苏州市吴中区2018-2019学年高二下学期期中数学(理)试题2007年普通高等学校招生考试数学(理)试题(湖北卷)(已下线)专题1 数学归纳法及其变种 微点1 数学归纳法(已下线)第二篇 函数与导数专题4 不等式 微点2 伯努利不等式
名校
解题方法
3 . 已知椭圆
过点
,且离心率为
.设
,
为椭圆
的左、右顶点,
为椭圆上异于
,
的一点,直线
,
分别与直线
相交于
,
两点,且直线
与椭圆
交于另一点
.
(1)求椭圆
的标准方程;
(2)求证:直线
与
的斜率之积为定值;
(3)判断三点
,
,
是否共线:并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/310f780f4f03699023b1322a1e002539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495bb3e5a3a9d35f5c9f0cf1f5d51876.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/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
(3)判断三点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
2022-10-11更新
|
1675次组卷
|
9卷引用:【区级联考】北京市昌平区2019届高三第一学期期末数学(文)试题
名校
4 . 已知函数
,其中
且
.
(1)讨论
的单调性;
(2)当
时,证明:
;
(3)求证:对任意的
且
,都有:
…
.(其中
为自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d9471f77a4cd41501471bd85c48d34b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1413a67adedc88a492a3f2e21e426961.png)
(3)求证:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52daa0cdc945df33fd98a43b930b71f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f663883e5e739184a7fc18c72a7b62ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e25da8298b6a96d627f3e8c990e55f0c.png)
您最近一年使用:0次
2022-04-03更新
|
2117次组卷
|
11卷引用:重庆市西南大学附属中学2019-2020学年高二下学期阶段性测试数学试题
重庆市西南大学附属中学2019-2020学年高二下学期阶段性测试数学试题苏教版(2019) 选修第一册 选填专练 第5章 微专题十五 函数、导数与不等式的综合应用重庆市实验中学2021-2022学年高二下学期第一次月考数学试题辽宁省沈阳市东北育才学校2021-2022学年高二下学期4月月考数学试题四川省泸州市泸县第一中学2021-2022学年高二下学期期中数学理科试题(已下线)第二篇 函数与导数专题4 不等式 微点9 泰勒展开式湖北省郧阳中学、恩施高中、随州二中、襄阳三中、沙市中学2022-2023学年高二下学期四月联考数学试题湖北省部分重点高中2022-2023学年高二下学期4月联考数学试题(已下线)第三章 重点专攻二 不等式的证明问题(讲)江苏省南通市通州区金沙中学2022-2023学年高二下学期5月学业水平质量调研数学试题(已下线)专题11 利用泰勒展开式证明不等式【讲】
名校
解题方法
5 . 已知函数
.
(1)求
在区间
上的最大值
;
(2)证明:
,都有
;
(3)若
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf8d7664fb3b01fe5f6ce3c1b97f97d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183c9869a29bb7e3e50886e6f1b59fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6200947d2077dd6d52cfcdb0fce877d4.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e76ede7cee33650d782bfc3478812f5e.png)
您最近一年使用:0次
6 . 设直线
,曲线
.若直线
与曲线
同时满足下列两个条件:①直线
与曲线
相切且至少有两个切点;②对任意
都有
.则称直线
为曲线
的“上夹线”.
(1)已知函数
.求证:
为曲线
的“上夹线”;
(2)观察下图:
的“上夹线”的方程,并给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70087bf78bee970f6ecf583ca1fccc42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0016d106579d6b26cf2960cf744f317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d9dc155203792c9983b2118b7730088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c043c3bf7b638f8bb635ee098130560.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)观察下图:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08fe48eafb7a58cb673cc4bce2aa0e7.png)
您最近一年使用:0次
名校
解题方法
7 . 如图1,在等腰梯形
中,
,
,
,
,E、F分别为腰
、
的中点.将四边形
沿
折起,使平面
平面
,如图2,H,M别线段
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/9066276c-44d7-477f-a965-e155543e93ed.png?resizew=413)
(1)求证:
平面
;
(2)请在图2所给的点中找出两个点,使得这两点所在直线与平面
垂直,并给出证明:
(3)若N为线段
中点,在直线
上是否存在点Q,使得
面
?如果存在,求出线段
的长度,如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/744c636a21ef089c9239eeafff4b83ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369eb8ad56da7dc1cdb7c43762be4bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/9066276c-44d7-477f-a965-e155543e93ed.png?resizew=413)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a984e08781547575be9680e8c61bb21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d4b05a1402beb3f13d4ce7d22089b9.png)
(2)请在图2所给的点中找出两个点,使得这两点所在直线与平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e769f81c1b5a405e2e7eb78f199f9e6e.png)
(3)若N为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d42170c7d4249f6b390823606c18c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a158113467436c24c6db00f058cf91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e769f81c1b5a405e2e7eb78f199f9e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3171b3d11c6f4619e189677345357508.png)
您最近一年使用:0次
2020-11-02更新
|
1349次组卷
|
4卷引用:北京市密云区2019-2020学年高一下学期数学期末试题
8 . 若有穷数列
满足
且对任意的
,
至少有一个是数列
中的项,则称数列
具有性质![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)判断数列1,2,4,8是否具有性质P,并说明理由;
(2)设项数为
的数列
具有性质
,求证:
;
(3)若项数为
的数列
具有性质
,写出一个当
时,
不是等差数列的例子,并证明当
时,数列
是等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b96f565b4ca625ab41a782e3dfd0f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0492686dc1959ba361d9b2832491620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e72ad2e72453867d089770c3f4c63da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)判断数列1,2,4,8是否具有性质P,并说明理由;
(2)设项数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3411ddca520e2bcb516d0c5c0832aeb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee349b3f104aa5a5e03830a205570f3.png)
(3)若项数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3411ddca520e2bcb516d0c5c0832aeb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcbd5bb726a08c308b48373afebbb768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0266e0e890fb1b84be352fdc65bb298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
2020-12-25更新
|
587次组卷
|
6卷引用:重难点01 数列(基本通项求法)-2021年高考数学【热点·重点·难点】专练(上海专用)
(已下线)重难点01 数列(基本通项求法)-2021年高考数学【热点·重点·难点】专练(上海专用)上海市嘉定区2021届高三上学期一模数学试题(已下线)考向17 数列新定义-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)专题05 《数列》中的解答题压轴题(2)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册)北京市第五十五中学2022-2023年高二下学期3月调研数学试题(已下线)上海高二下学期期末真题精选(压轴60题35个考点专练)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)
名校
解题方法
9 . 如图,在四棱锥
中,
,
,
,平面
平面ABCD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/d8dee249-e133-4f35-aca8-f9cbba1cddcc.png?resizew=180)
(1)求证:
;
(2)已知二面角
的余弦值为
.线段PC上是否存在点M,使得BM与平面PAC所成的角为30°?证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946470cef32a0bd769b3809351d8ee61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279e119eed905cf15026649a1b86502a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e4d19bf237a6fca67e0d01a9ddb726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04c222223dae9ef27d4c132534d9848.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/d8dee249-e133-4f35-aca8-f9cbba1cddcc.png?resizew=180)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545e18836bc7fee22f8f813a6f525d93.png)
(2)已知二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9f1e2b86f4eca37c72011d3dffb0c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f1145c162038df3c7184d9201c628e.png)
您最近一年使用:0次
2021-01-13更新
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974次组卷
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5卷引用:江苏省宿迁市四校2019-2020学年高一下学期期末联考数学试题
名校
10 . 已知函数
,
.
(1)求函数
在
处的切线方程;
(2)是否存在正数
的值使得
对任意
恒成立?证明你的结论.
(3)求证:
在
上有且仅有两个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e9ad6356c61c78e0c6bdcb5cda6ad2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)是否存在正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5958f044ad2968f1b3d26d2b20b49b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168163183a3d4663be45755f44676191.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5623a71215a5883b54bd85d48940a36f.png)
您最近一年使用:0次
2020-12-24更新
|
554次组卷
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5卷引用:江苏省苏州市张家港市2020-2021学年高三上学期12月阶段性调研测试数学试题
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