1 . 已知函数
.
(1)当
时,求
的极值;
(2)若
恒成立,求实数
的取值范围;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b48e39514c9e9909e94fc5745355cfa.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6274961e116aff1637d4bc3ac4944ce5.png)
您最近一年使用:0次
2024-05-25更新
|
726次组卷
|
5卷引用:重庆市第十八中学2023-2024学年高二下学期中期学习能力摸底考试数学试题
名校
2 . 已知实数,函数
有两个不同的零点
.
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c823090181be0e23e8e9d9f781cbd385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57fb4b017d21b7bbe006344156ec3458.png)
您最近一年使用:0次
2024-03-19更新
|
756次组卷
|
2卷引用:2024届高三下学期3月适应性考试数学试题(新高考金卷)
解题方法
3 . 已知函数
.
(1)求
的单调区间;
(2)当
时,
,求实数
的取值范围;
(3)已知数列
满足:
,且
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa28eec3eba6abdb9fb3374a66b2669.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343c47e107813158b6f071ab6236fe4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14835bf3f00139ccec0694d0924db795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e66c815c12d9ca706826740a96f93f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73b59a36da5531dd529c1fb2e11b654.png)
您最近一年使用:0次
4 . 已知函数
.
(1)讨论函数
的单调性;
(2)记曲线
在
处的切线为
,求证:
与
有且仅有1个公共点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372f1ab088e2a9fd3666e1b318d31b72.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)记曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd817a1014876a72ad1971548ed6f52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2024-03-08更新
|
824次组卷
|
2卷引用:重庆市第八中学校2024届高三下学期高考适应性月考数学试卷 (五)
5 . 已知函数
.
(1)讨论函数
的单调性;
(2)设
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1abb9d33b6c7caaab000e44b5e104f55.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afaaa2eb5e2220b3cbea3cd3ae8d2329.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455c6771b68eaf5c2549f992c3aaeee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63aec2c89bf4b18a7ea1a4d55dc66640.png)
您最近一年使用:0次
名校
解题方法
6 . (1)已知函数
,(
为自然对数的底数),记
的最小值为
,求证:
;
(2)若对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21b5aa0536804d11edfbac6ce7e1b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/094651a5f8e4849b629f1d8c18428d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d64af919a56a107e0fc0a417e481648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f650dfc48258190dd2f9acb5ff2ef50.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7077e94841bb3445b0d418d5fc592092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-01-17更新
|
550次组卷
|
2卷引用:重庆市主城区2024届高三上学期第一次学业质量检测数学试题
名校
7 . 已知函数
,
.
(1)若
,证明:当
时,
;
(2)当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04557ab042ce57739d7e3da3aa98494b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb3dec9d2ae8a300d24f78628d62900c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ffd1f6bd3686a07efa4086a02b96a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee92760f27fdcf3fa2c31f88276cfa9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a936f5f8e69618261123efdd183715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165a3be7695c23aed05573b724ddac97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-10-31更新
|
596次组卷
|
5卷引用:重庆市名校联盟2024届高三上学期期中数学试题
重庆市名校联盟2024届高三上学期期中数学试题重庆市云阳县实验中学2024届高三上学期11月检测数学试题重庆市九龙坡区育才中学校2024届高三上学期第三次联考复习数学试题(已下线)第九章 导数与三角函数的联袂 专题三 含三角函数的恒成立问题 微点1 三角函数的恒成立问题(一)(已下线)第九章 导数与三角函数的联袂 专题三 含三角函数的恒成立问题 微点3 三角函数的恒成立问题(三)
名校
解题方法
8 . 已知函数
.
(1)求
在
上的最大值和最小值;
(2)求证:当
时,函数
的图象在函数
图象下方.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62f5c1671e6b71dd50fe1063b70a435.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d930828ec7fe2d285a6b1499c18f259.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e807ac80be8d5f01f7d9d1b8907d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1189a22cc89137f4b1b0a2a593a2a4ab.png)
您最近一年使用:0次
名校
解题方法
9 . 牛顿在《流数法》一书中,给出了代数方程的一种数值解法——牛顿法.具体做法如下:如图,设r是
的根,首先选取
作为r的初始近似值,若
在点
处的切线与
轴相交于点
,称
是r的一次近似值;用
替代
重复上面的过程,得到
,称
是r的二次近似值;一直重复,可得到一列数:
.在一定精确度下,用四舍五入法取值,当
近似值相等时,该值即作为函数
的一个零点
.
,当
时,求方程
的二次近似值(保留到小数点后两位);
(2)牛顿法中蕴含了“以直代曲”的数学思想,直线常常取为曲线的切线或割线,求函数
在点
处的切线,并证明:
;
(3)若
,若关于
的方程
的两个根分别为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0573a6bcc480a91a43126d01bc19eeae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845b4f3a8f4aae8a8f97328dec21552a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29fecaa6b3e14aaf1a20ccf2b39bbe7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b99bab533c13bb8e4d09bbc646bbb5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786213763946db2cb6974f9fabad6540.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909736dad505d81be43aef91e6309bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
(2)牛顿法中蕴含了“以直代曲”的数学思想,直线常常取为曲线的切线或割线,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dfce215a0f2e0c00249cda12ac2b065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25b336a6ae4116b88076e9a9a723332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c417b0bdd2f26b54c74c52cb763572.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11821d923a6bec96212e1cedde4244ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d93a9dc63ab7eb56073cdb154e414941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2fd88f71f4c51c9a8249d8434258729.png)
您最近一年使用:0次
2024-04-24更新
|
748次组卷
|
3卷引用:重庆市第八中学校2024届高三下学期高考强化训练(二)数学试题
名校
10 . 已知函数
.
(1)求
的单调区间;
(2)当
时,判断
的零点个数,并证明结论;
(3)不等式
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf77f9cfb54952b2d37709063300c266.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65cc52aacc31a21a443c8de0374b24f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146117a7a36f053ecbc32c6061c058e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9da785604605f9af11b329328542aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-04-20更新
|
587次组卷
|
2卷引用:重庆市四川外国语大学附属外国语学校2023-2024学年高二下学期3月月考数学试题