解题方法
1 . 设定义在R上的函数
,满足当
时,
,且对任意
,有
.
(1)求
;
(2)求证:对任意
,都有
;
(3)解不等式
;
(4)解方程
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae291241c1f518f99a6dab5e1f6078a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
(2)求证:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e6511b4caf3a816d122fdc2d3636a2.png)
(4)解方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d827e942f1478917fd786877e89db4.png)
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解题方法
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a06bb8be7345881c25f814f43accb24.png)
(1)解关于x的不等式
.
(2)设函数
,若
的解集为
,求函数
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a06bb8be7345881c25f814f43accb24.png)
(1)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e357538192b0086515ca082025dad9b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e970c7f3475d3fbfa01d06a3b43dd4e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552869db524cb3d7b1f8307f5f815ae3.png)
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解题方法
3 . 设函数
,
.
(1)解关于x的不等式
;
(2)当
时,不等式
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ede4a660ea4ec1bac8834a388f54a69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5967cc62862986840af4dd29df4bcc41.png)
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4 . 已知函数
.
(1)若
,求
在区间
上的值域;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91748adb2e03f43a23ab4668b05db8d8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99185e48ab98b6757a2b9bb5aff7d0cc.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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解题方法
5 . 已知函数
.
(1)若
在
上单调递减,求
的取值范围;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7073ffa62a08bea00c4c4f8f8fa87129.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307e723df2757e00355133f755950275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e0a0dde137e24c80d0afeec024f2b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
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解题方法
6 . 已知函数
,其中
.
(1)若
在
具有单调性,求
的取值范围;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/961ab70a0b10169af69585ae8e693f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa66623cf54b42d6d12be4c8edaa7071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
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解题方法
7 . 已知函数
,
.
(1)若
,解关于
的不等式
;
(2)若
,当
时,
的最小值为1,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a230304b39828cfac8d75effd0fe04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/795a7d18305b3d86e9ae65621ff7c181.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4e93cb32bf86f707a519c20260df5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea66a72d87459b5ec8a8e9764b43982.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99923994f2c1721fc07450b4b9656980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
解题方法
8 . 已知二次函数
.
(1)若
的解集为
,解关于x的不等式
;
(2)若对任意的
不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5f96864b1d48a0ed7c75d972c06eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b03f81246769936154d50d832366d.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e72f73a14e6449fe4a18bd0fa9b739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0725b62bfc941e064258af9bafa19f02.png)
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9 . (1)已知关于
的不等式
的解集为
,求函数
在区间
上的最小值和最大值;
(2)解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0b7bb27a2bf547675eb6abd115ab6c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb8717370fd0b5b3fb6b8d578b9bedd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4fb8c2ea6117596f02445b70d19afb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7242b2ab643f9470da77e29d043b893.png)
(2)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b28b62727a50c289fcbe501177230e62.png)
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名校
解题方法
10 . 设函数
.
(1)解关于x的不等式
;
(2)当
,
时,记不等式
的解集为P,集合
.若对于任意正数t,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2fec67c27e234b7e78c0ae71dfdbec.png)
(1)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0edcf7314fbef5f6147f559c3005d60.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731bdc8d2686a05f12a2ba8a7e3b01be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5077b8e9afeb9f2d284427acb13ac84f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/567673e4f4033026cef3aabe9f8ac731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0541697f9fffb316df0f64bf409847.png)
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