名校
解题方法
1 . (1)已知
的定义域为
,求
的定义域.
(2)已知
是二次函数,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dccf1f9faac56117d6d3dd1dddd286d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75df9cd8e2a4dc24e03bae76e189d5a5.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21bab8e67d6afe3239259f50ff77953a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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名校
2 . 计算
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84fee7cd9d90e7e5ff23aaaae64c250a.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84fee7cd9d90e7e5ff23aaaae64c250a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193746291dac3246c8ea41513f947def.png)
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名校
解题方法
3 . (1)解不等式
.
(2)
的定义域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7c158bffa566dd65f29f3667d7592a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e7d79b7b91deb70aef8a35d671c088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
4 . 已知奇函数
的定义域是
,当
时,
,求
在
上的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2a5212465dfda1cd5c89fe4273c4eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
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名校
解题方法
5 . 求函数
的定义域、值域和单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e489cad64082409abdbe934ae43ae73.png)
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名校
解题方法
6 . 某市居民自来水收费标准如下:每户每月用水不超过4吨时,每吨为
元,当用水超过4吨时,超过部分每吨为
元,每月甲、乙两户共交水费
元,已知甲、乙两户该月用水量分别为
.
(1)求
关于
的函数关系式;
(2)若甲、乙两户该月共交水费
元,分别求出甲、乙两户该月的用水量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c42d81d62d84a1b2cbd9012ba8b03c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea3a24380289853d9d205585846a7ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11deaffbfecd8d2233f7a14523bd4e06.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若甲、乙两户该月共交水费
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2f565b15a7a7b73f4c3ff632f6993a.png)
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7 . 计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da405affc932ec4f5eb92038b2d80db9.png)
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名校
解题方法
8 . 已知函数
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211ebd58d457c6e7855cef475a91f203.png)
(1)求该函数的值域;
(2)若
对于任意
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c00c00d74a43e5cd6bc24484543281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211ebd58d457c6e7855cef475a91f203.png)
(1)求该函数的值域;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44cb48cabb2ca42afe6e3e3d09db6385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095c5f7a3c6917839c01fd1e5654ee91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
9 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0812b2c3df26731674448cca86e2025.png)
是定义域为
的奇函数.
(1)求
的值;
(2)若
,求
在
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0812b2c3df26731674448cca86e2025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623595256421e9a37812ca4da1044311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fafd63b5bf336b43ff8789d81892be6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb49dbba01c4ff5f686ffc8828351b2.png)
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10 . 已知
是定义在
上的奇函数,且
时,
)
(1)求
的值;
(2)求函数
的解析式;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39972ac382793f6fbec63e0e57df1920.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4126c673520d0bb6223d84a553f57f06.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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