已知函数
满足
.
(1)设
,求
在
上的值域;
(2)当
时,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8855e22cd02420e92f52282f005d8a5.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923780b6de2364d52b6a08a26c719abd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6bfefa5b41faae17987876d570685d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b6c304151a290d9f680674ae3d7dab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9ddb3d357cf0563c57c6bd413c436a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2016-12-05 00:23:27
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解答题-作图题
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解题方法
【推荐1】已知函数
满足
,函数
是
上单调递增的一次函数,且满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/f7ec6b68-607b-497c-9621-2b29183835e1.png?resizew=209)
(1)请分别求出函数
与
的解析式;
(2)已知函数
,画出函数
的图像;
(3)若
且
,
,
互不相等时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0cdbf54553f655e42bc68b8db4356b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a7c5d4066648a19b23714e1a908973.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/f7ec6b68-607b-497c-9621-2b29183835e1.png?resizew=209)
(1)请分别求出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b73a853eaaeebe8ad0fffda3a3e687de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60ed5557fd761626d8b4549b5bb1d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
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解题方法
【推荐2】求下列函数的解析式:
(1)已知f
=x2+
,求f(x)的解析式;
(2)已知
求f(x)的解析式.
(1)已知f
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96b9d25cda9e9e20b51808b03800b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49765865dbb68a7afbce6814295b7a2.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6390262ae2468fee456bb13acd6726.png)
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【推荐1】已知函数
(
且
)是奇函数,且
.
(1)求
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(2)求
在区间
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bc01e6e45a7699b54325514e418efb8.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/e1772b8effb0a79f747285f30a8d35dd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663db8a8e903e6033390a8efc5d8acda.png)
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解答题-证明题
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解题方法
【推荐2】已知函数
是
上的偶函数.
(1)求实数
的值;
(2)判断函数
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(3)求函数
在区间
上的最大值与最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890c793e49479fb3ce9d826014b8c7ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e58768fc0df02f60aa54d00fe063c52.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5c4c4e50a0a67ce5fa0e422d2eb4ef.png)
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【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9b1c8b4e463b2d9e0ef8cdde8287cc.png)
(1)判断函数的奇偶性;
(2)求证:函数
在
上是增函数;
(3)求函数
在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9b1c8b4e463b2d9e0ef8cdde8287cc.png)
(1)判断函数的奇偶性;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28e45dd4cefbbbe59f349d3a251f895.png)
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【推荐1】(1)求函数
的单调区间;
(2)求函数
的单调减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f504abb2e28b737bceada83b6f86a86d.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621596b045a43697b177dfb92cf0c298.png)
您最近一年使用:0次
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解题方法
【推荐2】已知函数
.
(1)写出函数
的单调区间;
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的最大值为
,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4591fe783da68f647be20763a2083aed.png)
(1)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/332e71982612ea86c28b9f2054b1045c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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解题方法
【推荐1】已知
,不等式
的解集为
.
(1)求集合
;
(2)
,不等式
恒成立,求正实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9579ecce76691f7459198e8a69c0d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51035f9b1a84d36570e1eefa1386a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e7fc51b1481587127beec6f3bb4d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】已知函数
,且
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(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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