解题方法
1 . 已知某公司生产一种零件的年固定成本是
万元,每生产
千件,须另投入
万元,设该公司年内共生产该零件
千件并全部销售完,每
千件的销售收入为
万元,且
.
(1)写出年利润
(万元)关于年产量
(千件)的函数解析式;
(2)当年产量为多少千件时,该公司在这种零件的生产中所获利润最大?(注:年利润=年销售收入-年总成本)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9966dfe9109671c587892bd32f0b6699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfab5f2113e2541a4a1af1b1432c418f.png)
(1)写出年利润
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2972af8c65701183de194c358b83256c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当年产量为多少千件时,该公司在这种零件的生产中所获利润最大?(注:年利润=年销售收入-年总成本)
您最近一年使用:0次
2 . 已知直线
和直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1229d92ec823fae81ee20b357f5e87b2.png)
(1)若
,求
的值;
(2)若
,则
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd566a13e51b9cd563236fef1ff75755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1229d92ec823fae81ee20b357f5e87b2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de48d1af93ef39c01ed3c226bada2f9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/702735f2576ed71a7a9aa5635f08bdd7.png)
您最近一年使用:0次
2016-12-04更新
|
645次组卷
|
2卷引用:2016-2017学年四川省三台中学高二上学期周考数学卷2
名校
解题方法
3 . 三角形三内角
,
,
的对边分别为
,
,
.已知
.
(1)求角
的大小;
(2)若
的面积等于
,
为
边的中点,当中线
的长最短时,求
边的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/fbea95fdd92c649f231b1256051252e9.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
名校
4 . 已知函数
.
(1)求不等式
的解集;
(2)设
的最小
为m,若正实数a,b,c满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea992e373619807bd641647c8fe7821.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1767f70cdc6165c62f9c3062f72f5e30.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f18be966092ffdc5e2d251e0802850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0a81b36d44792d24c09f8c3513ccf8.png)
您最近一年使用:0次
2022-04-29更新
|
0次组卷
|
8卷引用:四川省绵阳市江油市太白中学2024届高三上学期12月月考数学(理)试题