名校
解题方法
1 . (1)某厂生产产品
件的总成本
(万元),已知产品单价
(万元)与产品件数
满足:
,生产
件这样的产品单价为
万元.
①设产量为
件时,总利润为
(万元),
的解析式为什么?
②产量
定为多少件时,总利润
(万元)最大?
(2)已知
,求
的值;
(3)已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46d555e2f55840784cebc5eeeaba4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f50d583e2d0d5361cc3b99d8b39e5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6f1af4b44b2e97e8f319bab4ae9010.png)
①设产量为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa50c62220434caca5bc663e5a9a327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa50c62220434caca5bc663e5a9a327.png)
②产量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa50c62220434caca5bc663e5a9a327.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f57397e197cfe42f335ff53515d58f.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3854d44da64f5683c3af94248fe121ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
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