1 . 有苹果与桃两种果树,出售后能获得的利润分别记为
(万元)和
(万元),它们与种植的面积
的关系近似满足:
,
,现有
亩土地用于种植这两种果树,为获得利润最大,这两种果树各种植多少亩?获得的最大利润是多少万元?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/426de088bc16a563b1f8d75ecba1364b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cae3aaeec1b59243b3849f526ae2d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
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解题方法
2 . 已知
,若关于x的不等式
的解集是
.
(1)求a的值;
(2)设
,证明函数
在区间
上单调递增.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48283aac275c3bd3a3f969da2608044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2687ff35a4e89fc02d8762ab1dc2527e.png)
(1)求a的值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd96c712e0e2afb3cd70bcbc0a8bfb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ffd6e5f48a6f6463604ed1cc15ac36b.png)
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3 . 已知函数
的定义域为
,对任意
,
都有
,且
.
(1)求证:
;
(2)求证:函数
为偶函数;
(3)若
,且
在
上单调递增,解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3db12c82c2098f267765cf7d220418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a431537df789febf4bc45e3dc23cefaf.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241553167658572549705dda8cd7c207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b81b9f0ad9389b94913e12c96abe25.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e3f5c5181bebab3d4bdfea286645674.png)
A.若![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
2023-11-10更新
|
148次组卷
|
2卷引用:山西省大同市2023-2024学年高一上学期期中数学试题
5 . 当
时,幂函数
为减函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec0aa6cc473f94b5040b07f221ddcc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2023-11-10更新
|
191次组卷
|
2卷引用:山西省大同市2023-2024学年高一上学期期中数学试题
6 . 化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df7712b924686cf6a3c4db0905d659b.png)
______ .(用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df7712b924686cf6a3c4db0905d659b.png)
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7 . 函数
的定义域为______ .(用区间表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5fbba9fcb4961c8c27018215801eea9.png)
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解题方法
8 . 若区间
满足①函数
在
上有定义且单调;②函数
在
上的值域也为
,则称区间
为函数
的共鸣区间.完成:(1)写出函数
的一个共鸣区间______ ;(2)若函数
存在共鸣区间,则实数k的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351c2cb070c6d4c0b91f9245bd2e6f8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1273da9a1b60d2c16dc62062b9efead7.png)
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9 . 用
表示非空集合A中元素的个数,定义
,已知集合
,
,且
,设实数a的所有可能取值构成集合S,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ecde6ad7897b29232f03521c7df3066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce2a546fdb93ffa6e163fe6e1b6f0c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b969cc35fe3fb1af5bf5d2e2beef2be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0eda5b89a4a848edc6b1a2ae8e0a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8823395fd2aa2284019ec6cc071e1b40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f8f62dbac7f9b9d6e8b3aa4fdf3c6d.png)
A.1 | B.3 | C.5 | D.7 |
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10 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a35d6c9bd23a6ff097c27391cf51f4c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a35d6c9bd23a6ff097c27391cf51f4c.png)
您最近一年使用:0次
2023-11-09更新
|
1419次组卷
|
5卷引用:山西省大同市第一中学校2023-2024学年高一上学期12月月考数学试题