1 . 已知
为等差数列,
为等比数列,
.
(1)求
和
的通项公式;
(2)对任意的正整数
,设
,求数列
的前
项和.
![](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/9b0073e3d5e02310aa42b531a8436f88.png)
(1)求
![](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/91f91aa29cda237b7bffe66633faa40e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
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2020-10-14更新
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4卷引用:江苏省南京市第二十九中学2021-2022学年高三上学期开学摸底数学试题
2 . 若函数
的定义域为
,对于
,
,且
为偶函数,
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8b8afc7a258f48c267e52788b642bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe17821ea81c6fec60bd5273901bd50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ed4485745f1d259a3953c242b9cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d764128f27e2ce55a0f20bab569009db.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
3 . 已知函数
在区间
上有最大值4和最小值1.
(1)求a,b的值;
(2)若存在
,
对任意的
都成立;求m的取值范围;
(3)设
,若不等式
在
上有解,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7887020f2896ea3bd7b7f17531a93a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44284ff1ea50429a0610e13363be6080.png)
(1)求a,b的值;
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d660b2fbb91d3877318b3ecb18ef5446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc07b26dd042e53758acf17f13f5896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289b829eef5358e420ec6e0c0a0aad54.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba94b35258a2fbde34d7e26be524fb6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d42d76c68ef50a38ebe4f11c1a08b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
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2020-10-12更新
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1100次组卷
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2卷引用:江苏省盐城市伍佑中学2020-2021学年高三上学期摸底考试数学试题
名校
4 . 已知函数
,
.
(1)求
的单调区间;
(2)已知
有两个极值点
,
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5227d81433a93901b6d17a34e0ce516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e477aa5f8c79e4dcf2b0110aad15961.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ed5a4f8d724011398458765f0f2edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee657c3f25e5b18440df03913f38f219.png)
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2020-10-10更新
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5卷引用:江苏省南京市第五高级中学2023届高三下学期3月月考数学试题
名校
5 . 已知函数
(n为正整数),则下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6630cce703169795d01811aed2aa9c82.png)
A.函数![]() |
B.当n为偶数时,函数![]() |
C.当n为奇数时,函数![]() |
D.当![]() ![]() ![]() |
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2020-10-10更新
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4卷引用:江苏省南通市通州区2020-2021学年高三上学期9月第一次诊断测试数学试题
名校
6 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)已知
是函数
的极值点,若
,求证:
(极值点是指函数取极值时对应的自变量的值).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1637f403133c31af02eff0e21c7e00.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f6ed76662695d4c711be57a16c3197.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797ca3d72464b5adf74e7b686e2ffabd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31cdc61764eef3fbe2dc5fafaa2efb39.png)
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2020-10-10更新
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1148次组卷
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4卷引用:江苏省南通市通州区2020-2021学年高三上学期9月第一次诊断测试数学试题
名校
7 . 已知函数
,则方程
的实根的个数为_______ ;若函数
有三个零点,则
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cac4d251a7142a3311e3826c7c13096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b665a1329dcb5c9904dd1b3eb9c671c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037bc50e0f30c4b6437f76cfe1bb14bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-10-09更新
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521次组卷
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4卷引用:江苏省南通市如东县2020-2021学年高三上学期期末数学试题
2020高三·山东·专题练习
名校
8 . 已知函数
,
.
(1)设函数
与
有相同的极值点.
(i)求实数a的值;
(ii)若对
,
,不等式
恒成立,求实数k的取值范围;
(2)
时,设函数
,试判断
在
上零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec8741eca0d3c23f77bd7be2cde4eb77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e12a0f11b1471ac2dc013361c604975.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(i)求实数a的值;
(ii)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded9c8d9954e9d2cc63000ce66bf533f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e45cc93442f8fec2215f50a60bd9b56.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de2fb532d5c6185d4c347b27341d00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b1e690e8835f4261c956697a605aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f2820e59dc42a5ff80def48334356b.png)
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2020-09-29更新
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767次组卷
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9卷引用:江苏省宿迁市沭阳县如东中学2020-2021学年高三上学期第一次月考数学试题
9 . 已知椭圆两焦点
、
在y轴上,短轴长为
,离心率为
,P是椭圆在第一象限弧上一点,且
,过P作关于直线
对称的两条直线PA、PB分别交椭圆于A、B两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/7a8defec-bc47-4259-9a4e-52954dfa7ec8.png?resizew=149)
(1)求P点坐标;
(2)求证直线AB的斜率为定值.
![](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/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fcd71b6af16a8dbd79f074e910a64d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da01a3abe1c9dc4e6283afa0dc1a0d39.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/7a8defec-bc47-4259-9a4e-52954dfa7ec8.png?resizew=149)
(1)求P点坐标;
(2)求证直线AB的斜率为定值.
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2020-09-29更新
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3卷引用:江苏省宿迁市沭阳县如东中学2020-2021学年高三上学期第一次月考数学试题
江苏省宿迁市沭阳县如东中学2020-2021学年高三上学期第一次月考数学试题江苏省宿迁市沐阳如东中学2021-2022学年高三上学期8月线上第一次调研数学试题(已下线)专练34 专题强化6-椭圆的综合应用-2021-2022学年高二数学上册同步课后专练(人版A版选择性必修第一册)
10 . 已知函数
,
.
(1)当
时,求
的零点;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725726ce767b8bf4d6c2c79b31e4c391.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-09-26更新
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4卷引用:江苏省常州市前黄高级中学、溧阳中学2020-2021学年高三上学期期末联考数学试题
江苏省常州市前黄高级中学、溧阳中学2020-2021学年高三上学期期末联考数学试题山东省青岛市2021届高三调研检测数学试题(已下线)专题21 函数与导数综合——2020年高考数学母题题源解密(山东、海南专版)(已下线)2021届普通高等学校招生全国统一考试数学考向卷(六)