1 . 函数
的值域不可能是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/326a38cb3224a5557941697f3a762f1e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
316次组卷
|
2卷引用:2017届江西上高县二中高三上学期开学考数学(理)试卷
解题方法
2 . 已知函数
为偶函数.
(1)求
的值;
(2)用定义法证明函数
在区间
上是增函数;
(3)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e105ca25ba176470b7b1ba256aa4817.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781baa37df9e57dca049ee0f7c8b2122.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb162d59dac91d5831a4dabd2dbf81c1.png)
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3 . 已知
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5731d5098620bea585173620fec485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00f470ea1c8455e920e39b87b82023ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc3519919335b5d5811904fbf384994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.2或-6 | B.-6 | C.-6或-2 | D.-2 |
您最近一年使用:0次
名校
4 . 已知函数
定义域是
,则
的定义域是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b727eb9da56be079445321cf61cf26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48b3749bfef2e73f7dcf10152c35a866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89cd903efe4f0f319818cacf4d97515c.png)
您最近一年使用:0次
2016-12-04更新
|
1439次组卷
|
4卷引用:2017届江西上高县二中高三上学期开学考试数学(文)试卷
5 . 某商店按每件80元的价格购进某种时装1000件,根据市场预测,当每件售价100元时,可全售完;定价每提高1元,销售量就减少5件,若要获得最大利润,则售价应定为
A.110元 | B.130元 | C.150元 | D.190元 |
您最近一年使用:0次
6 . 已知全集
,集合
,
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438995bfce2456ddd2ad111dc9538ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0eedf62cc9ce665607ddb20366203a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ce2866e065fb1581a273484c856ef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc254a6e59e78af8ec0bfc002c04f443.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知函数
,若方程
有四个不同的实数根
(其中
),则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2d91d8b6fbc5cba09b5bf489b378a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5146bc9a97f4702752c969ee2ff9f4da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b57db116a7c7a7f575d1f685c236f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/944732667fe1cf6ad5b89a8c94df4b23.png)
A.![]() | B.![]() | C.![]() | D.不确定 |
您最近一年使用:0次
名校
解题方法
8 . 已知定义域为
的函数
满足以下条件:①
;②
;③当
时,
.若方程
在
上至少有
个不等的实根,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5979e5baee53abbefe3f99ac82ff00f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6d2d083c6db6cb0b5e0151cda52c00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b63ad90f0aa560eac1e2b3b698d04e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706ac9d773881bdcd4231bb0fa281885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
689次组卷
|
3卷引用:2017届江西新余一中高三上学期开学考试数学(理)试卷
9 . 已知定义域为
的奇函数
,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d142ae22692a2306cb61848134642f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca8254697b9dbb7998e7c6bcf6bba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a1c30840b80c2ff5ca6f4583c8ac94.png)
A.![]() | B.![]() | C.![]() | D.不能确定 |
您最近一年使用:0次
2016-12-04更新
|
206次组卷
|
2卷引用:2017届江西新余一中高三上学期开学考试数学(理)试卷
名校
10 . 函数
的图象关于点
对称,
是偶函数, 则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc686059868a044375ad1c6a86d8cbcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4520fa4c5668673d4b5fa2896bdbfc27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-09-19更新
|
360次组卷
|
2卷引用:2017届江西上高县二中高三上学期开学考数学(理)试卷