名校
1 . 若
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/63e30e96-753a-427a-b3a6-1d640672ccf9.png?resizew=249)
(1)分别求
与
的定义域;
(2)求
的定义域与值域;
(3)在平面直角坐标系内画出函数
的图象,并标出特殊点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023cdf3e66b2383b6d37a04bcef410b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165cc925f908da282e77a5865a27fe11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15c2171c1be9ec394494ad822a048d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/63e30e96-753a-427a-b3a6-1d640672ccf9.png?resizew=249)
(1)分别求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(3)在平面直角坐标系内画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
您最近一年使用:0次
名校
2 . 已知
为定义在实数集
上的函数,把方程
称为函数
的特征方程,特征方程的两个实根
、
(
),称为
的特征根.
(1)讨论函数
的奇偶性,并说明理由;
(2)已知
为给定实数,求
的表达式;
(3)把函数
,
的最大值记作
,最小值记作
,研究函数
,
的单调性,令
,若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/decf79fb602d6c309a94405b08774e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ede389b43c78417912542746d91d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90df641ab645927ee577e79faf18dcdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7c9973f3e62efae752597dc024f996.png)
(3)把函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70d3d06b06ec518a2d171b62304bccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a99f85713fa79323f9f94ce9082f433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06c89da16fa99e7b438489cff7850f63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70d3d06b06ec518a2d171b62304bccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b090f52ea0fcc5943708cd607dfab0ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00abedb3fd20ddde95cb022c14a6b5d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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6卷引用:2019年上海市进才中学高三上学期第一次月考数学试题
名校
3 . 已知函数
(
).
(1)求证:函数
是增函数;
(2)若函数
在
上的值域是
(
),求实数
的取值范围;
(3)若存在
,使不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5184e807923973e050bc5cc153a5f915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e846c2563b54d7b68e51119addda5022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/737c165baced95d7095d9f918a9cc110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88efbe4c812bb90d2f5a11697eab3898.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-11-14更新
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2卷引用:上海市闵行七校2019-2020学年高三上学期期中数学试题
名校
4 . 设集合
,
,若
,试求
与
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd7a612032aaf1c40e7928adfd7bc5d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe0a096dbfe8a4916ef1588f7551f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f233942ee5af4c232dfa69863063177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
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2卷引用:上海市青浦高级中学2019-2020学年高一上学期十月质量检测数学试题
名校
5 . 已知关于
的函数
.
(1)求
在区间
内的零点;
(2)若方程
在
有两个不同的实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dfd88961b692edcc69fd9f1d3d83061.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dfd88961b692edcc69fd9f1d3d83061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3cee5e50ee4f1dfbcf0ff0312fef1b.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01b6fb6a1c7a895df528382a5583444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 某商品每件成本价80元,售价100元,每天售出100件.若售价降低x成(1成
),售出商品数量就增加
成,要求售价不能低于成本价.
(1)设该商店一天的营业额为y,试求y与x之间的函数关系式
,并写出定义域;
(2)若该商品一天营业额至少10260元,求商品定价应在哪个范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f5aae5f32e5b86728dde2a1127ad89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f038bbed4772677aa6dfd02405582982.png)
(1)设该商店一天的营业额为y,试求y与x之间的函数关系式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若该商品一天营业额至少10260元,求商品定价应在哪个范围.
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7 . 已知集合
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4daf436966b8dae8bfb9b17774f0bba.png)
(1)求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb2d1b5e61d8e52e3f5189eddc4dce63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4daf436966b8dae8bfb9b17774f0bba.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8bd94517e17ddc4ed2effa7022de9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
8 . 设函数
.
(1)若函数
的图像与
轴无公共点,求实数
的取值范围;
(2)若方程
有两个不相等的正根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f9d0e54452c83ea8f78af0c608eb86.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
9 . 设实数集为
,集合
,
,
.
(1)求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed6b36f8adf5502d1a19ac2e5826325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afdb4fe1d01dd4e7ee942341bf001e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d264039df0bf4c715826e3d70e879e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55d36b0b4e8bb54e0a23bdb6140a41a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1044cd14484db33772a038bdd4fe3373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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10 . 已知函数
.
(1)求
,
的值;
(2)设
,试比较
、
的大小,并说明理由;
(3)若不等式
对一切
恒成立,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfee2c4efc91317d8e0ade4c839d863.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1a1611f320c0f358df77aaae3f942.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a6f362a7f8f972d6b329a882e940d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3bf2007903adc64d089a054c2284a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4889b4b46d3cd6dd677d200bdf4914fe.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72196c2a2b0cf84ed15cb172cdabb454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80774e927bd04a537dfcdd8f04d3f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-11-08更新
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3卷引用:上海市闵行区闵行中学2019-2020学年高一上学期期中数学试题