1 . 已知函数
.
(1)求函数
的定义域,并根据定义证明函数
是增函数;
(2)若对任意
,关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa9dcadad1dbb86779df9ec84dc9a1b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a8d578ace45420869dda45ad3b66c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94a46e92f8f10ead211829a03349800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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名校
2 . 已知函数
定义域为
.
(1)求
的取值范围;
(2)当
时,函数
的图象始终在函数
的图象上方,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703c5f5f5316f7e3461550262b057275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f1a939f4c755490d52484c7fcaf98b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b5e9031206ff27e2c7fd41593601ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 已知函数
(
,且
),从下面两个条件中选择一个进行解答.
①
的反函数经过点
;②
的解集为
.
(1)求实数a的值;
(2)若
,
,求
的最值及对应x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a04546d92fd165fc1ad2cc82c2dbb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac7c28099bfbb7dc2a45ad166eace05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0878cff562bec40a7bd879f81e0c6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea5cf29ff47f6c64f4537c425e0967f.png)
(1)求实数a的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e2eab4171f9c3e73b0e0a1af336cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f3fc2a6b50f762c8378283b56023f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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名校
4 . 已知函数
.
(1)证明函数
的图象过定点;
(2)设
,且
,讨论函数
在
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84117b58944d6788691c2b24c070bb47.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71badab736269c6567a3977823e2f9b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3387f999c9cba4a1a083959709371447.png)
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2024-02-03更新
|
388次组卷
|
4卷引用:4.4.2对数函数的图象与性质(第3课时)
(已下线)4.4.2对数函数的图象与性质(第3课时)重庆市2023-2024学年高一上学期期末联合检测数学试卷重庆市2023-2024学年高一上学期期末数学试题福建省厦门市第一中学2023-2024学年高一上学期期末模拟数学试题
解题方法
5 . 已知幂函数
在
上是增函数.
(1)求
的解析式;
(2)设函数
,求
在
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eef36f7d9af3b6b5bc0ff03103a672f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45eda636cb34f633901c1acd38481623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7242b2ab643f9470da77e29d043b893.png)
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名校
6 . 已知函数
(
且
)为奇函数.
(1)求函数
的定义域及解析式;
(2)若
,函数
的最大值比最小值大2,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ea9fe0a6678af683f03fcef5e60a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679c9edadb198dae2983e88f9ee58beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-03-03更新
|
225次组卷
|
3卷引用:4.4.2对数函数的图象与性质(第3课时)
解题方法
7 . 已知函数
.
(1)是否存在实数
,使得函数
为奇函数,若存在求出
的值,若不存在,说明理由;
(2)若
为正整数,当
时,
,求
的最小值.
(参考值:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd99e63f2eb72c912613c350d99156b.png)
(1)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34220e24228a108a51006463af44ca22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(参考值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae7a9d0428c1de519213c1f0e2b89c1.png)
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名校
8 . 设函数
.
(1)证明函数
在
上是增函数;
(2)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0a159abf4967cde913461cdfa43b01.png)
,是否存在常数
,
,
,使函数
在
上的值域为
,若存在,求出
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b98daf65925db94639ad1ef35bb782e.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0a159abf4967cde913461cdfa43b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1295b852efee8d6d0a92cbe38439c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e03da8991b693adefa96a2f61b548d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475963eea170ff0bbdaf2f0b706dfc34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f68bca234d478ab4c052adf6193ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-12-28更新
|
961次组卷
|
5卷引用:专题16对数函数-【倍速学习法】(人教A版2019必修第一册)
解题方法
9 . 已知函数
(
且
,
为常数)的图象经过点
,
.
(1)求
的值;
(2)设函数
,求
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17afd02a58c3d3c25ac4f8cab171e24.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/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/758a8bbcb76c425086a92f133203a433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e6445e0fc58359e249fe2fb1edbed7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51fbe4dcae782f9d4f2ff909ffda9c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dccf1f9faac56117d6d3dd1dddd286d.png)
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2023-12-23更新
|
851次组卷
|
7卷引用:专题04 与指数函数、对数函数有关的复合函数及函数方程综合应用-【寒假自学课】(人教A版2019)
(已下线)专题04 与指数函数、对数函数有关的复合函数及函数方程综合应用-【寒假自学课】(人教A版2019)山西省部分学校2023-2024学年高一上学期12月联合考试数学试题福建省福州市九师教学联盟2023-2024学年高一上学期1月联考数学试题(已下线)专题06 幂指对函数的图象与性质(2)-【寒假自学课】(苏教版2019)(已下线)高一数学开学摸底考 01-人教A版2019必修第一册全册开学摸底考试卷(已下线)热点2-2 函数的最值(值域)及应用(8题型+满分技巧+限时检测)海南省2024届高三上学期一轮复习调研考试(12月联考)数学试题
10 . 已知
.
(1)当
时,解不等式
;
(2)若关于x的方程
的解集中恰好有一个元素,求实数a的值;
(3)若对任意
,函数
在区间
上总有意义,且最大值与最小值的差等于2,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f782ac135ebb68ffe809837006c8f6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b783ec4871b338c9612cbc700694e7.png)
(3)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e6185447373cdf38c28ba73415637c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983fa8d30993077d136d644a4de7a394.png)
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