1 . 已知
,且
,若
,且
,则正整数
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da32adb27f0b1165ff54ae424d3e8b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6941c343e7d71a66146dc40bf148c9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e46773d78620bb2abe768647839649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7dcdc12243229c38d59daec142c4d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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解题方法
2 . 已知函数,若对任意
都有
,则实数a的取值范围是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 若函数
,则关于x的不等式
的解集是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ce6fb7b113b0baea323b9d9129e3e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffb083270fccc5eeb3e1409d1a64847.png)
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解题方法
4 . 已知函数
.若
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/483796c965fccef2b613fa1b293d2d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb9a102ee64dedb8c8f66dd862bf4443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
5 . 已知函数
,其中
且
.
(1)若
,
,求不等式
的解集;
(2)若
,
,求b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78357a4692ab7d75157333f49a62439b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d03b9867f112114f33627d8c28600a8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b713856f459dcb717f4e5be71b022e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c5be1c986ef462966026705615ddb66.png)
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2023-12-23更新
|
315次组卷
|
4卷引用:专题2.3 幂函数与指、对数函数【九大题型】
名校
解题方法
6 . 设函数
的定义域为
,若函数
满足条件:存在
,使
在
上的值域为
(其中
),则称
为区间
上的“
倍缩函数”.
(1)若存在
,使函数
为
上的“
倍缩函数”,求实数
的取值范围;
(2)给定常数
,以及关于
的函数
,是否存在实数
,使
为区间
上的“1倍缩函数”.若存在,请求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0195f699765021e2c6ea985e487971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8af7bed124f00c8e19b52d028b4d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb3ba497136e83ffa942f09c14b5b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211dcbab91936df10848233146d2339a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a635f125bd16c1bea7009f4e5e402b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)给定常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a6e51f16456ca04a55f19fc5dcc368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f68d632ecfa559995f25fb9080b7ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
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7 . (1)已知函数
,若对
,使得
,求实数
的取值范围;
(2)若命题
:函数
(
且
)在区间
内单调递增是真命题,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a77356a1d9399c3a7cd746daee7fae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4dc98c9e5c0d34abd404256ddd9534e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8353fee2c05c64a46ea5003e2f05173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28491f7ef64389d62b0e1574ab56429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
8 . 已知函数
且
.
(1)当
时,求
的单调增区间;
(2)是否存在
,
,使
在区间
上的值域是
?若存在,求实数
的取值范围;若不存在,试说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7ad238afe8ae4cc63a73d1e7a54717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a934e20f54099f85c515f83d09f49a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31e72421c0d65e00edb2acce12abffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47c3f71d0028b8dabc076d1d02611ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-09-12更新
|
824次组卷
|
6卷引用:专题4.6 指、对数函数的综合应用大题专项训练-举一反三系列
(已下线)专题4.6 指、对数函数的综合应用大题专项训练-举一反三系列(已下线)第6章 幂函数、指数函数和对数函数综合能力测试-【帮课堂】(苏教版2019必修第一册)江苏省常州市前黄高级中学2023-2024学年高三上学期期初考试数学试题四川省眉山市仁寿县文宫中学2023-2024学年高一上学期12月月考模拟数学试题(已下线)第四章 指数函数与对数函数-【优化数学】单元测试能力卷(人教A版2019)(已下线)第4章 指数函数、对数函数与幂函数-【优化数学】单元测试能力卷(人教B版2019)
解题方法
9 . 定义在区间
上的函数
满足:若对任意
,
,都有
,则称
是
上的上凸函数.
(1)判断函数
是否为上凸函数?为什么?
(2)若函数
在
上是上凸函数,求
的取值范围;
(3)在(2)的条件下,当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e384ba050b238e11f7c74d3002aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063223b5d1fc1b45ad67c449b330a064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef469c7b7cb9945b984222381b9c000.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e349f49908801a73999320f7a49820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在(2)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a80f796352ce199941b79b4aeffa3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
解题方法
10 . 在函数
的图象上有A,B,C三点,它们的横坐标分别是
.
(1)若
的面积为
,求
;
(2)判断
的单调性;
(3)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c53c0ecf03e384b16a7ba1d9eea455b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330c091c6d352c007ce7395751bd58e9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db36b05ca6e82ba23fe69aecd514b67.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db36b05ca6e82ba23fe69aecd514b67.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db36b05ca6e82ba23fe69aecd514b67.png)
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