已知f(x+4)+f(x-1)=x2-2x,其中f(x)是二次函数,求函数f(x)的解析式.
更新时间:2017-11-17 17:30:53
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适中
(0.65)
【推荐1】求下列函数的解析式:
(1)已知
,求
;
(2) 已知函数
是一次函数,且满足关系式
, 求
.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cf8c17d57691b7169ba94b55a8380e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2) 已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdcc8eaeaeb581dbd76fdd3549c70ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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解答题-问答题
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适中
(0.65)
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解题方法
【推荐2】已知二次函数
满足
,且
.
(1)求
的解析式;
(2)求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c292ad5ab432ba87d945d952ae84d2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab30faa78cc53c104f61b1cd906c365.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8e7be8a55e6ebe7296e8b06f033d4.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知函数
.
(1)求函数
的解析式;
(2)设
,若
,使
成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f312a6ff15f368dda98fa7fdca1adb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed7c666e02731ed52b1c5f4a154dc42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee3376bf8d298b83dd10a58a02528fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54bf554b0a0c17a7c18dae757218fe1b.png)
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适中
(0.65)
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61c5af7c85781dad096d457543d2393.png)
(1)当
且
时,求
的值域;
(2)若
,对任意的
使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61c5af7c85781dad096d457543d2393.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486bfe4410a63494ea47fa4186061a54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a68eadbcb9953c6d7fc17ef2763ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86304c3e26200299a0480641525a283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5cdde751120c6deab563a6f7f8cf05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eafb92652f041da53ade3cb7a6c6eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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