解题方法
1 . 已知函数
和
,
(1)若
,求
的值;
(2)若存在实数
,使得
成立,试求
的最小值;
(3)若
,对任意的
,
,都有
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6263576e5c3f2324a8dac311476bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b355e85d912b1f25ed1ca3b36e636784.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5998a43d6bb050f648b93c635c008dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d09acdce3deb0bb066dca07aa96198.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a00e51c75b6db3cdc521cf77f361c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a074019a75a26e8d6b9147731a29a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0105d3297379e68f708a3ab8d64b6cda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2 . 设
,则
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63cdb37f8009be5a10586fea811c6575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知实数
为函数
的零点,
为函数
的零点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f947d030c265753e4201ae4d9c69e99.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0576a0520249b48fd302a0d47317678f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34516f09a665374834b1b165e1a43b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f947d030c265753e4201ae4d9c69e99.png)
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解题方法
4 . 设定义在
上的函数
满足
,
为奇函数,当
时,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f0d2a39035b8046045727e60443ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81e15b871dd32b2438ef8025bcc42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459d1d8477fd46ece5a65d40e32b4bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab30faa78cc53c104f61b1cd906c365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7dec97c55a499d6b7120a07c4979f55.png)
A.1011 | B.![]() | C.![]() | D.![]() |
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5 . 已知
分别满足下列关系:
,则
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c034fe93ffb4be7bec50b0c129595a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 设函数
,若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6062d1a6ecfc72ae6689a08419982738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
A.![]() | B.![]() | C.![]() | D.1 |
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8卷引用:2024年新课标全国Ⅱ卷数学真题
2024年新课标全国Ⅱ卷数学真题(已下线)2024年高考数学真题完全解读(新高考Ⅱ卷)专题02函数(已下线)2024年新课标全国Ⅱ卷数学真题变式题6-10福建省泉州市安溪铭选中学2023-2024学年高二下学期6月份质量检测数学试题(已下线)五年新高考专题02函数概念与基本初等函数(已下线)三年新高考专题02函数概念与基本初等函数(已下线)第05讲 对数与对数函数(八大题型)(讲义)
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解题方法
7 . 已知函数
,若
,则
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571bdbe6e09cf983787cb70c4b811d64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cc553a81e66a1b15d457aa39a72917.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 已知集合
(其中
是虚数单位)
,定义:
,
.
(1)计算
的值;
(2)记
,若
,且满足
,求
的最大值,并写出一组符合题意的
、
;
(3)若
,且满足
,
,记
,求证:当
时,函数
必存在唯一的零点
,且当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531f55c9de4647282bc0424a81f4fd25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ddb621d78a738eba6ebafecbbd7d06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47aa3fcf666d1169ceca5e1e720b926e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccc73232efc9d641adcbae21035944.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0ff8b406a295a58f4fbb36b4c292fa.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be674fcbd2fd1a608fd4a9705c70db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20e7c6170cd75c5a40d7e695eda15e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e95d018246b699601d127e79ec46131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f82089a3186fdffaa2535faebd3d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b54286fe72b8305272c36c0a3a8d2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f7d480cfc89b872404666083e62db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546ababc482b51df95c4aba05ee18c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d828db2a08e2a1da164a0012cc6627a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661249bf6499017f9e5e03db3fcd93d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d5ec74c81f7d02f273f7eecefaf9a7.png)
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解题方法
9 . 已知函数
若
,且
,则下列关系式一定成立的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353372712f9b302d01c9eff8edb1d335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71152396d26b0c146e6a3c042bbdae9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 已知
是定义在
上的偶函数,当
,且
时,
恒成立,
,则满足
的
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4fdd7c4c8313a9f9df525a4a3e46d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c28967904a688343761d856a8c29d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93acdd1905e7b9374f0644820fb3fd71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819db5ade82b0659c2f6c1f33dc68384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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