名校
解题方法
1 . 已知实数
,
,
.
(1)求
;
(2)若
对一切
成立,求
的最小值;
(3)证明:当正整数
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9e5b7f6208a13f357be15e7d710ea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f146c48c81d7148fa0acbb24e9716e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aecd30fc6668e650986e1c33b0e4732.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3ec7ada52f4850719a970aeb59ca16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1415277a2abd787827778054bd134d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce2d628fffa16f2afab468d95f5c652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(3)证明:当正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36358fa9a7718a7337f35e90592fc16d.png)
您最近一年使用:0次
2023-05-10更新
|
668次组卷
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3卷引用:上海市华东师范大学第二附属中学2024届高三上学期开学考试数学试题
2 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233aa8bb190d5535f84eade0cfbc6b95.png)
(1)若
,
,
,请比较a,b,c的大小;
(2)若函数
有两个零点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233aa8bb190d5535f84eade0cfbc6b95.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ccdf28e62c595d1f0337b18d70266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ba48368ed6dd4b0f6d49b30113de0f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a90f10037c5230d4281abb93c9179e4.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786999ff39b91fac93044fb70679be5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b67a008cbc20e42a317acfd632a8052.png)
您最近一年使用:0次
2022-08-22更新
|
552次组卷
|
2卷引用:贵州省遵义市新高考协作体2023届高三上学期入学质量监测数学(理)试题
名校
3 . 已知函数
,
.
(1)当
时,求
的单调区间;
(2)设函数
,
①若
有且只有一个零点,求实数a的取值范围;
②记函数
,若关于x的方程
有4个根,从小到大依次为
,
,
,
,求证:
;
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6124c9a86e0d272e2787b6d042966a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4f133cb14a3a1f0266da8cb55025ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c49bb0158e88c77d6dd95f889554eda.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5e7bc77ec1a98af267cd4763e6dc53.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
②记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6cfdd1ca0b5f743ec1ac8f52414347a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b306c7aad39c01889a82f73c4d46a77.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/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966729d1d3a982c6351bf63453dd55c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc37487bad04e5ab8056a6be472b2bf.png)
您最近一年使用:0次
2022-02-27更新
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977次组卷
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2卷引用:浙江省名校协作体2022届高三下学期开学考数学试题
4 . 已知函数
(e为自然对数的底数).
(1)求证:
时,
;
(2)设
的解为
(
,2,…),
.
①当
时,求
的取值范围;
②判断是否存在
,使得
成立,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2abd52a21627a3233cd377aa1a257189.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a90f71a22daa4df7bd75c1e3e66fcb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8a82d291105594bb2f97fb81b165d0.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba2e727ac09acdaafb6c97e4f5c50aa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803092f422dcd99c23e821770b923188.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2daf2bf93c9c6fceee6b8068ee19d111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9727721cbac7d8d47c511fe934f9215d.png)
②判断是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2498a2158280a2502d58ccfc84e5bc69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2bed16e997a85f5d6d1a4d2d89a83f.png)
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解题方法
5 . 设函数
.
(1)若
为单调递增函数,求
的值;
(2)当
时,直线
与曲线
相切,求
的取值范围;
(3)若
的值域为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23fd3528abd567636055e2193046d0c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1eaf48f1ad368af0b0961322e50d74e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d31f9ce464f2ce3b24833b70595941c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e9454e1c89d09cb8e1fbd628ae2cbb.png)
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6 . 设
,
满足
,证明:
(1)对任意正数
,有
;
(2)对任意正数a,b,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda6dc559d07bc22c9a0ed1e3a6d01d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7aaba80aaeefc1d254e81cd4512d91.png)
(1)对任意正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c18f73f2cac83961192ff0cc097fa8.png)
(2)对任意正数a,b,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1786d4925644cf64df25133e528bc13.png)
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2021-09-01更新
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2卷引用:安徽省六校教育研究会2021-2022学年高三上学期第一次素质测试理科数学试题
7 . 已知函数f(x)=
,下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945a04d7ea457b458c7913942bc4ae33.png)
A.函数f(x)在(-1,0)上为减函数,在(0,+∞)上为增函数 |
B.当x1>x2>0时,![]() ![]() |
C.若方程f(|x|)=a有2个不相等的解,则a的取值范围为(0,+∞) |
D.(1+![]() ![]() |
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4卷引用:江苏省盐城市伍佑中学2022-2023学年高三上学期期初考试数学试题
名校
解题方法
8 . 函数
,
(1)
,求
的单调区间;
(2)若
在
上恒成立,求实数
的取值范围;
(3)令函数
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4525e82ada54f2dd90f1ece5491386d.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae459325f9e94cdba1171fec1648ee59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5cdde751120c6deab563a6f7f8cf05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)令函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41396999fce75ce8fdf4a8725de79bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0730c8068c1eba9c05e2d396d348f0.png)
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2021-05-24更新
|
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8卷引用:2021年秋季高三数学开学摸底考试卷03(江苏专用)
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