解题方法
1 . 设数列
的前
项和为
,已知
,且
.
(1)证明:
为等比数列,并求数列
的通项公式;
(2)设
,若对于任意的
,不等式
恒成立,求实数
的取值范围;
(3)高斯是德国著名数学家,近代数学的奠基者之一,享有“数学王子”的称号,用他名字定义的函数称为高斯函数
,其中
表示不超过
的最大整数,如
,
,设
,数列
的前
项和为
,求
除以16的余数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32899ae4ebf40c57124b2cabba77ef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1928c254cfada1f75a5cd1e34db5a63.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b1b04112db77069cb75ad66501d564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b8dd6deb75e13a84f153070d22f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf3fb678d1de9b83ae7ab8bfe0cc25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)高斯是德国著名数学家,近代数学的奠基者之一,享有“数学王子”的称号,用他名字定义的函数称为高斯函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1550a97c21c1d71c9e95dde569668be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d54a0e82778f606d95a486835ac9f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f2323cbdf0b1b71092c962ae705102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dfc2d1084094bb015f11974a10c26b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3200f3cc24af2c9663b5c0de282810.png)
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2024-04-08更新
|
1286次组卷
|
2卷引用:辽宁省鞍山市第六中学2024届高三下学期第二次质量检测数学试题卷
名校
2 . 已知数列
为有穷数列,且
,若数列
满足如下两个性质,则称数列
为m的k增数列:①
;②对于
,使得
的正整数对
有k个.
(1)写出所有4的1增数列;
(2)当
时,若存在m的6增数列,求m的最小值;
(3)若存在100的k增数列,求k的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c1ee4d7c3f69fdd5a250ab8862d114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9db29473c5e28422317559df73a1037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937c09d82c480e4d67f8a48d3f66c5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431acf301f0cf1e414b532de94708474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa768d0bb9bcf827b3e7310e35ef0fbf.png)
(1)写出所有4的1增数列;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45cf86650443d1b86c79b1e3edc7e5c.png)
(3)若存在100的k增数列,求k的最大值.
您最近一年使用:0次
2024-03-27更新
|
1171次组卷
|
4卷引用:河南省郑州市2024届高三第二次质量预测数学试题
名校
解题方法
3 . 已知数列
的前
项和为
,满足
;数列
满足
,其中
.
(1)求数列
的通项公式;
(2)对于给定的正整数
,在
和
之间插入
个数
,使
,
成等差数列.
(i)求
;
(ii)是否存在正整数
,使得
恰好是数列
或
中的项?若存在,求出所有满足条件的
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fd67e206753eff52406291c19daa38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23f7f601ad9971d3de3e2dd820642e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0197eeeeaafec6b1fdd7bb8509572f6b.png)
(2)对于给定的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd6f136f7c8d27b406c0993dcfece54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b8d5b6045219ea4527202ab131bb2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417083c7157cf0b45befc7c537f1012c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629e172f62f389ea84b7d771c1c27566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a039f1df440117fe89030a4ad6dcf291.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22be6bbf70b5c135edaf8db69118cb50.png)
(ii)是否存在正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d75ed0812322ed46d25ec41f609674be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-03-19更新
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2001次组卷
|
6卷引用:湖南省九校联盟2024届高三下学期第二次联考数学试题
解题方法
4 . 设函数,
(其中常数
,
),无穷数列
满足:首项
,
.
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770de2dc30a92008fe24dcd40df911ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36de978f04fe3193cc149cbdfeeeaa90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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5 . 设
.在
的方格表的每个小方格中填入区间
中的一个实数.设第
行的总和为
,第
列的总和为
,
.求
的最大值(答案用含
的式子表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f98da45d4de19a962cfa1d186e2755a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ace7d64e7ff100db25a07330654d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af908bca1b10f5de7e2d8979989c806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de122ae929b1acaff321dec137622ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aba126d3f244b529547fa33b1dc5f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a71c7129333f890292aa75bc1d080a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
6 . 已知数列是由正实数组成的无穷数列,满足
,
,
,
.
(1)写出数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)判断:是否存在正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7306bacb80799eeabd3fd46cb8632598.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74828c0bbc29e16c346941b7d4287f2f.png)
您最近一年使用:0次
2023-04-06更新
|
1205次组卷
|
6卷引用:上海市杨浦区2023届高三二模数学试题
上海市杨浦区2023届高三二模数学试题(已下线)专题06 数列及其应用北京市海淀区2023届高三数学查缺补漏题(2)(已下线)北京市第四中学2024届高三上学期10月月考数学试题变式题16-21上海外国语大学闵行外国语中学2023-2024学年高二上学期期中数学试题重庆市九龙坡区育才中学校2024届高三下学期阶段测试数学试题
7 . 在数学中,双曲函数是与三角函数类似的函数,最基本的双曲函数是双曲正弦函数与双曲余弦函数,其中双曲正弦:
,双曲余弦函数:
,(e是自然对数的底数)
(1)解方程:
;
(2)写出双曲正弦与两角和的正弦公式类似的展开式:
_________,并证明;
(3)无穷数列
,是否存在实数a,使得
?若存在,求出a的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444eaaaf560b7ed9b225e9ba34c5dbbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f980c011d926a51ef8201dc79e88002.png)
(1)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01958f2959a7fa4a86d8b25058ccb1ba.png)
(2)写出双曲正弦与两角和的正弦公式类似的展开式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13b62168f8e90860410fde112257aec.png)
(3)无穷数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d04f8e5504b64a6eada18e2dc997b55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd167bb422b4b23cfc8fe76c9a6c5a41.png)
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解题方法
8 . 定义:符号
表示实数
、
、
中最大的一个数;
表示
、
、
中最小的一个数. 如,
,
.设
是一个给定的正整数
,数列
共有
项,记![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01199da4114511b6f3dced0fa4c50426.png)
,
.由
的取值情况,我们可以得出一些有趣的结论.比如,若
,则
.理由:
,则
.又
,
,于是,有
.试解答下列问题:
(1)若数列
的通项公式为
,求数列
的通项公式;
(2)若数列
满足
,
,求通项公式
;
(3)试构造项数为
的数列
,满足
,其中
是等比数列,
是公差不为零的等差数列,且数列
是单调递减数列,并说明理由.(答案不唯一)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/225be414d59a022c9456348f56784318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d669c05de69c4e82327576e630e690de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd3c167e5fb2a5de897cbfededb1c75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d375f8080f4f9297d079a1556211118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d09f994198167ee71a261a20e437eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01199da4114511b6f3dced0fa4c50426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01042971eb25362b7a3f1c0643c4670d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658c3b3e72ac3a53632210c0c3de3499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50a4b1e4f8b1d044300df7ef8205c31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974ec2ba8cc5c3359a112eb7eef246a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5083a59d00ee26f5709202fa5344630c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974ec2ba8cc5c3359a112eb7eef246a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc35a1a6558499dbf8e368682bf46f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46148262daa2e1b3ef29f08701702c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e6b55263081a4c048677e232213189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5083a59d00ee26f5709202fa5344630c.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a6590a4909d70cbf8ed3e58e4978da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26219cb164d1ef457ce21fdf99376e5f.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d3af24e0787167e622c0375b7a279a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d07b502d14c9431029a0645fa04cbca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)试构造项数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb2db37e079b735acc41ea3035139e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35d2715b9e36e8bb1b69d2f9fadb358.png)
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9 . 已知无穷数列{an},对于m∈N*,若{an}同时满足以下三个条件,则称数列{an}具有性质P(m).
条件①:an>0(n=1,2,…);
条件②:存在常数T>0,使得an≤T(n=1,2,…);
条件③:an+an+1=man+2(n=1,2,…).
(1)若an=5+4![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2468403b3eba9e40bfa36f464e927738.png)
(n=1,2,…),且数列{an}具有性质P(m),直接写出m的值和一个T的值;
(2)是否存在具有性质P(1)的数列{an}?若存在,求数列{an}的通项公式;若不存在,说明理由;
(3)设数列{an}具有性质P(m),且各项均为正整数,求数列{an}的通项公式.
条件①:an>0(n=1,2,…);
条件②:存在常数T>0,使得an≤T(n=1,2,…);
条件③:an+an+1=man+2(n=1,2,…).
(1)若an=5+4
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2468403b3eba9e40bfa36f464e927738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cba79639deae5f8af6088b30c1a800.png)
(2)是否存在具有性质P(1)的数列{an}?若存在,求数列{an}的通项公式;若不存在,说明理由;
(3)设数列{an}具有性质P(m),且各项均为正整数,求数列{an}的通项公式.
您最近一年使用:0次
2021-05-02更新
|
1166次组卷
|
5卷引用:北京市海淀区2021届高三下学期期中数学试题
10 . 已知数列
各项均为正数,
是数列
的前
项的和,对任意的
,都有
,数列
各项都是正整数,
,
,且数列
,
,
,…,
是等比数列.
(1)求
,
;
(2)证明:数列
是等差数列;
(3)求满足
的最小正整数n.
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786dce700f614ef34e9cf42ddee9022e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab7d59ce066c8f0b346719003f8e28f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fd0f362d2c0560c6207c5634d3732a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec342b0a17f898d4e70f75f04b50fdb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb16f890ca919e5a116f3056d7b04f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f814b537650d7b2ab376a1dbca25d84d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
(2)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3be18ca37723026c986af0d3e9968f.png)
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2020-10-11更新
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4卷引用:江苏省连云港市东海县第二中学2020-2021学年高二上学期9月月考数学试题