1 . 已知实数数列
满足
,且存在正实数m,使得
恒成立,则
的最小值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f125c3dbfef5db47e010265b8e855fd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e85840539f8ef78c84754b48ffa906a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90707999e8fc89ae1137e5115c39f637.png)
您最近一年使用:0次
解题方法
2 . 已知数列
的首项
.
(1)若
是公差
的等差数列,正整数k,
,证明:
.
(2)若
是公差
的等差数列,正整数k,
,证明:
.
(3)若数列
满足
为一个自然数集上的正值函数,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd3f44bcf5b9431232653aeea90ac40.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd7b00f044bee0cf190d398e6feaffb4.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc45743b14774d709f901027b0d235c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4b34c133b6a70da053d8417c1f150e.png)
您最近一年使用:0次
解题方法
3 . 设
,则
的值域是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687288f8bbcf57c2d962fcbdfbf57cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c8b5693eb5bafedef7b174a2b7881a.png)
您最近一年使用:0次
解题方法
4 . 已知
,且
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d05bf789a20dbfced92873a2198dfbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78add07fbb6f005213d0b4ad9b836e9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b282cb437b469e5adf889bc6195520.png)
A.![]() | B.![]() |
C.417 | D.以上答案都不对 |
您最近一年使用:0次
5 . 设
是与
的差的绝对值最小的整数,
是与
的差的绝对值最小的整数.记
的前n项和为
,
的前n项和为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc5bdf3c570417a23e93b39e5f81dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206f5bf03289564813b60645c4d8bc84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cf1da18d91f7c98086553d157d1a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30136113176ba7fe660e998d0873157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87778a05aa136cef4185c2f4520a9096.png)
A.1 | B.2 | C.3 | D.以上答案都不对 |
您最近一年使用:0次
6 . 已知函数
,其中
.
(1)证明:
有唯一零点.
(2)设
为函数
的零点,证明:
①
;
②
.
参考数据:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7573ad83c7fdbdd21e7ad648dabcff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cb4dfdd6761f67b2586ebd408bc15f6.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450efeff8a78e650d17cfca8d411c4f7.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c04c89a680ff7556cee31f24e9b77c09.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5361b129a7ae086d392b48ec52417bc0.png)
您最近一年使用:0次
7 . 已知函数
在点
处的切线与直线
垂直.
(1)设函数
,求函数
的单调性.
(2)证明:
.
参考数据:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935d1ef13b361d5e6df682e389c738d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e9b78e590e29cac325a0f96c203a30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac27984896c556ce6060e691eb708d4.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ab86e2797cc24a9fed5ef4d9f84017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f13ae2ebc05a038e0561f19cffa540.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2162482d3b2c0690cf107d368058174a.png)
您最近一年使用:0次
8 . 已知函数
(
表示不超过x的最大整数),则
的函数值可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836a80628c0850aaa2e786e4bbea6873.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 已知
是离
最近的整数,则数列
的前2021项和是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d249094ecb996458e35182d6b461299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.60544 | B.60585 | C.60612 | D.60625 |
您最近一年使用:0次
2023-02-07更新
|
616次组卷
|
3卷引用:2021年清华大学自强计划测试数学试题
名校
10 . 已知函数
(其中
为常数且
)在
处取得极值.
(1)当
时,求
的单调区间;
(2)若
在
上的最大值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f94f267d26e390cd5c981bde2cda963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(1)当
![](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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8d82b0a97f17f6fbd0587cdfc984e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-02-02更新
|
331次组卷
|
4卷引用:北京市北京师范大学附属实验中学2022届高三10月月考数学试题