2012高三上·上海·学业考试
名校
1 . 已知函数
,其中
.
(1)当
时,设
,
,求
的解析式及定义域;
(2)当
,
时,求
的最小值;
(3)设
,当
时,
对任意
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68663c9cdbdb9585a5aba78e86199361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4287e3fbd7910c03606ab99d69ecc669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763430588d2176dcf51cffa8940109b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1510dd289cf6a899f2d817ca5b6782e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514b4a1384404b2b846db12d7d1e8008.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4287e3fbd7910c03606ab99d69ecc669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0d7fbcc396c7b646c31f60e32d9e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ed481b54b7b8c776bedb8b76346590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b1499e806c0cac5417dc62702c7df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e207cf62e3a7e282eac4c4a3455bbf9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2016-12-01更新
|
2129次组卷
|
3卷引用:2012届上海市十三校高三上学期第一次联考试题文科数学
(已下线)2012届上海市十三校高三上学期第一次联考试题文科数学江西省景德镇一中2019-2020学年高一上学期期中(1班)数学试题江西省三市八校联盟2023-2024学年高一上学期期中大联考数学试卷
2012·上海嘉定·一模
2 . 定义
的“倒平均数”为
.已知数列
前
项的“倒平均数”为
,记
.
(1)比较
与
的大小;
(2)设函数
,对(1)中的数列
,是否存在实数
,使得当
时,
对任意
恒成立?若存在,求出最大的实数
;若不存在,说明理由.
(3)设数列
满足
,且
,
且
,且
是周期为3的周期数列,设
为
前
项的“倒平均数”,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/949ffcf1e25ed4b0804babd03a8287d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc63d0f256614d26a40bf784c400324a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c02db8c962008a559794340e242982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11465a5f01c9cc7495e0acf24781102.png)
(1)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71fd3bd2adc4704035e114536bdb217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07484865eeeb041620019c0cee8bf94b.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7b6f62bea5937a59f88a8352d3e9eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a426d8afd49a1ce1e8dddd2ea37498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac021ac918bf0c9ae1de6b74e538ae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/659a7edb0401b6461283614edccb5cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8c29b297e3ec337c3139c2a1ebed1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80f94cf9d594dd6735e9c631a092afc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c019ff46856737b93711a604c6555bca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4726162c92d522b399a978a46d89f6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79bfee7ade07d40b54a80f1d13eda5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb26cd1601fe7e76e1e2dc0b4909324a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5b1f27cfab224437be48de38671dd0.png)
您最近一年使用:0次
12-13高三上·江苏扬州·阶段练习
解题方法
3 . 已知集合
.
⑴是否存在实数
,使得集合
中所有整数的元素和为28?若存在,求出
,若不存在,请说明理由;
⑵以
为首项,
为公比的等比数列前
项和记为
,对任意
,均有
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90b2485d1e0a5bfd1075ef1767506f0.png)
⑴是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
⑵以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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/29d5ec9ad92f37e64eccce922ab1b14e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35eb4fe67d5a6378c3ac14def93d0d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
11-12高三上·上海松江·期中
名校
4 . 设函数
,其中
、
为已知实常数,
.
下列所有正确命题的序号是____________ .
①若
,则
对任意实数
恒成立;
②若
,则函数
为奇函数;
③若
,则函数
为偶函数;
④当
时,若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460c07a6303b94c2efdbe63c1cb2c996.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be81760015cf34b0e5cb869580c91306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
下列所有正确命题的序号是
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0037388c0b202acddc092f2c143e3548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/502c4ff1cd420b9da4de849e63c307e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db92ae4746a34821d8c5b1cce16486b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5dabbaf770207f1d9b83ca67ac9147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cce53f43e48a21edecc19607e94ace1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c2a6c35384d6ebc5e47ffecb16c1d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b38cf5324c3ae9884d2405141f8a4e0.png)
您最近一年使用:0次
10-11高三·江苏扬州·阶段练习
5 . 已知数列
为各项都是正数的等差数列,公差为
,在
之间和
之间共插入
个实数后,所得到的
个数所组成的数列
是等比数列,其公比为
.
(1)若
,求公差
;
(2)若在
之间和
之间所插入数的个数均为奇数,求所插入的
个数的乘积(用
表示)
(3)求证:
是无理数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe9369621149328a9e5629bc5314604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a475fec8ded321e10a6697319fb975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3354269baaffd727561b0fdd5b0822d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0844f76f51e8257a20ae2777572675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(2)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a475fec8ded321e10a6697319fb975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2893d3f29ef0cb8eddbbc62a12f8185.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
6 . 在平面直角坐标系
中,给定抛物线
,实数
满足
,
是方程
的两根,记
(1)过点
作
的切线交
轴于点
,证明:对线段
上的任一点
,均有
;
(2)设
是定点,其中
满足
,过
作
的两条切线
,切点分别为
,
与
轴分别交于
,线段
上异于两端点的点集记为
,证明:
;
(3)设
,当点
取遍
时,求
的最小值(记为
)和最大值(记为
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423dd554f7aeb16125a504a184475cef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772afcc01c1403c748a0309e864cc61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969eb127024cc1af1f9bf025a65270b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3fb59a42bef86feafb85a91ac571bf.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8817cd9512dbb13ec1b51fc08f24665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcfcaf60bec2f8e1f983f46380d71e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe069597c109e716479c9296cf3ebcb.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe689f915e3c9c12616966d1a9a9352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2714a73764c5e100793c925f5812aad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c862b6389bc63a67c0e3cc86466e1269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1871c2be51c597ca28acb6dd8555bf.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de41f1cac6a2d9a98ec52a72a18283b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698c4d4e50062b4a7dd70fe1b4ab4fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2542208be649a40105724802a7ad10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3934126cd86a6bf079a2650e5f79979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a0c8b7d066e9d3b9a4db3161b74df1.png)
您最近一年使用:0次
2011·江西抚州·一模
7 . 执行下面框图所描述的算法程序,记输出的一列数依次为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/0107dbf2-d5b6-46f0-bed3-b9bb38466fca.png?resizew=297)
(1)若输入
,写出输出结果;
(2)若输入
,求数列
的通项公式;
(3)若输入
,令
,求常数
,使得
是等比数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9095a9d099ee5f5d7c637ff62451747b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8676904179cba2add222b11be24fc9d8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/0107dbf2-d5b6-46f0-bed3-b9bb38466fca.png?resizew=297)
(1)若输入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e260f5fe6e3637a415344ff137c7a6be.png)
(2)若输入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(3)若输入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2de24722625d8031d0d2397c1c38a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fddfed51e1f83bd2205e464cc1619c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b37093676a343a8c0dfd53217cdf97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
您最近一年使用:0次
2011高三·河北·专题练习
解题方法
8 . 已知函数f(x)=
+ln x-1.
(1)求函数f(x)在区间[1,e](e为自然对数的底)上的最大值和最小值;
(2)求证:在区间(1,+∞)上,函数f(x)的图象在函数g(x)=
的图象的下方;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
(1)求函数f(x)在区间[1,e](e为自然对数的底)上的最大值和最小值;
(2)求证:在区间(1,+∞)上,函数f(x)的图象在函数g(x)=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d800f03de80068a1172beac3a2c75587.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/429c5dfb0bd68fb5aac39fb635a65a06.png)
您最近一年使用:0次
2011·北京顺义·二模
解题方法
9 . 已知椭圆
的左,右焦点坐标分别为
,离心率是
.椭圆
的左,右顶点分别记为
.点
是椭圆
上位于
轴上方的动点,直线
与直线
分别交于
两点.
(1)求椭圆
的方程;
(2)求线段
长度的最小值;
(3)当线段
的长度最小时,在椭圆
上的
满足:
到直线
的距离等于
.
试确定点
的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e10f5be271d5e18347e2792d348e5411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b141148d19998c842aee2e5b1de63a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4670dc40e366188fa7e441fe61046fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(3)当线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77e9c89b7275b0c1a9af5c9a72e5968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821309f088a175c00dc0f4828334503d.png)
试确定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
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