已知函数
.
(1)若
在
上有唯一零点,求
的取值范围;
(2)若
对任意实数
恒成立,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60589fb9a258900a6961f5212896d71.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1a65d88f9823d49da8f3b96ea9ec6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2220e35b3ee482a6445b393f57f70ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d6647837e9498303cf267116ce4423.png)
2023·四川达州·一模 查看更多[3]
四川省达州市普通高中2024届高三上学期第一次诊断性测试数学试题(理科)广东省广州市广东实验中学2024届高三上学期第一次调研数学试卷(已下线)专题07 函数与导数常考压轴解答题(12大核心考点)(讲义)
更新时间:2023-12-13 09:47:55
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解答题-问答题
|
困难
(0.15)
解题方法
【推荐1】已知函数
(
).
(1)若
,证明:
;
(2)记函数
,
,
是
的两个实数根,且
,若关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43fc965db5aa0c054a80ec2a87b37f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf6a05ca58b009ca056efef2c3c1c4c0.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/93b07e33c682cc17d95b1554068f724a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe0fad240886b75c754eee9c643fde4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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名校
解题方法
【推荐2】已知函数
.
(1)求
的单调区间;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc1b193aa193153eb402df8560778e6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb4095bd18e708a182db1cc694e55b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31aa19c60f49823139869c42cb3ab15a.png)
您最近一年使用:0次
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(0.15)
名校
解题方法
【推荐1】已知
,且0为
的一个极值点.
(1)求实数
的值;
(2)证明:①函数
在区间
上存在唯一零点;
②
,其中
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aaf8922b1b6e2a4366bbd142ad447b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd531902180b2316d92936e1d1c5219d.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f759e5772fb6972efa066f9d0ea363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
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【推荐2】已知
,函数
,直线
.
讨论
的图象与直线
的交点个数;
若函数
的图象与直线
相交于
,
两点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8aa5c24766744e194574d31ca534c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9f34aee1659178bb68cb32634223a0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de45ff6478aa6609ef2a3c3f99ec09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de45ff6478aa6609ef2a3c3f99ec09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a456b9cda93ce6c7d81e86ed006749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc01d535f7520c9c9a5b3990af5ec3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0e0dacd372e2bbd8d880c4177b7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/126258a9477c29a5328cadf165122272.png)
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【推荐1】已知函数
恰有两个零点
.
(1)求实数a的取值范围;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d253bd92dbefea7687e64eb2f6ba3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98919b1335a8b7ca020636d1494ad0d.png)
(1)求实数a的取值范围;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86f4ccbc390795571f21cfdc2485ee6.png)
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【推荐2】已知函数
,其中
.
(1)求函数
的最小值
,并求
的所有零点之和;
(2)当
时,设
,数列
满足
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1d5835c46f59383b2299826f11206a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a20457d180264f78d611dc7893d735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6f4a302d3a9023c0a82b889f4ba918.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09af88d8438bfdf9abe9e5234e1abb8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c0a98e6d574ec3702340e64bba6c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfad06200477816cf838c4ca01817fd9.png)
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【推荐3】已知函数
,
是非零常数.
(1)若函数
在
上是减函数,求
的取值范围;
(2)设
,且满足
,证明:当
时,函数
在
上恰有两个极值点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdecb9954c9854b82107a30afb82d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf7bf3192755667df35fcbdf5324286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee7d87fdc38060d34f1417c3ad184215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c8bd720b624c5cfee61ff67af08734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a7792efd7f82bfa7549db4cb6ca761.png)
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