1 . 知集合
,
,同时满足 ①
,②
,
.求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62b9104dd5a162ae2c5a1ba4af88595f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/044986da22645c481f6fc2469e37ea50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3320f9ba1753968b5d2831397c634c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db80a67def8ffa0523d014aa1e77b670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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2 . 给出下列结论:
①集合
的子集有 3个;
②函数
的值域是
;
③幂函数图象一定不过第四象限;
④函数
的图象过定点
;
⑤若
成立,则
的取值范围是
.
其中正确的序号是________________ .
①集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e449960f4e986c1ed259cd2f7eef553.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ebdec701dac44b2dd8ce2fa49c10f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60cce332317884d04b38b1ebe8a50d18.png)
③幂函数图象一定不过第四象限;
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd809c231251dcd0e5ca8d2c8eb2a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe8803bc5d850ec2a6f15bcdb12c896.png)
⑤若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f679d2bd708c86a5812bea359fb15f7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b419a704616921ef37f2b4cf9e582b.png)
其中正确的序号是
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3 . 家用冰箱制冷使用的氟化物,释放后破坏了大气上层的臭氧层.臭氧含量
呈指数函数型变化,满足关系式
,其中
是臭氧的初始量.
(1)随着时间的增加,臭氧的含量是增加还是减少?
(2)多少年以后将会有一半的臭氧消失?(提示:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b347b26ef9261dc2980659add58f43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1698b9a76d725f9a254b9798d926fd.png)
(1)随着时间的增加,臭氧的含量是增加还是减少?
(2)多少年以后将会有一半的臭氧消失?(提示:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b7cfcc147916ae7eeb5d557fea945e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25522700e456c259978a6d762e818572.png)
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名校
4 . 经市场调查,某门市部的一种小商品在过去的20天内的日销售量(件)与价格(元)均为时间
(天)的函数,且日销售量近似满足函数
(件),而且销售价格近似满足于
(元).
(1)试写出该种商品的日销售额
与时间
的分段函数表达式
;
(2)求该种商品的日销售额
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6749d535d77e5d976d9b2403fc6e771b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74473984852398a5617afafe5593c16a.png)
(1)试写出该种商品的日销售额
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46c4cd1b9ee831b558cbd209af6ebcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b36da3b4cc0a0cc408ef324b04c9d4.png)
(2)求该种商品的日销售额
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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2017-11-25更新
|
686次组卷
|
8卷引用:山东省青岛市西海岸新区胶南第一高级中学2017-2018学年高一上学期第一次月考数学试题
5 . 已知函数
的定义域为
,对于任意的
,都有
,且当
时,
,若
.
(1)求
,
的值;
(2)求证:
是
上的减函数;
(3)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd384d86840b7b158af41f56fe29c7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b9a961ac7e7aed0aa31509e2e40585.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf59c5075f9e6fdf3782b6c0e528237.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(3)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/903398d58cdb60b88895ddb79541b27e.png)
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2017-10-28更新
|
801次组卷
|
2卷引用:山东省青岛市西海岸新区胶南第一高级中学2017-2018学年高一上学期第一次月考数学试题
6 . 已知函数
,
.
(1)若
是奇函数,且在区间
上是增函数,求
的值;
(2)设
,若
在区间
内有两个不同的零点
,
,求
的取值范围,并求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3be29d0506850fdda187302424e61f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e64ba8593537d13752713ecc882cd5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/126b4b9899590e477197fa7af3fe378a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c275d203295b989c129101d82e74ae01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e62ba44cbfec6823ebc1f0c7457fb.png)
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7 . 设函数
,
的零点分别为
,
,则下列结论正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/201b082e5e30c4856bab454bdb6a2c7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9a5095076fa3aed051749abdc17f06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
8 . 已知圆
满足:①圆心在第一象限,截
轴所得弦长为2;②被
轴分成两段圆弧,其弧长的比为
;③圆心到直线
的距离为
.
(Ⅰ)求圆
的方程;
(Ⅱ)若点
是直线
上的动点,过点
分别作圆
的两条切线,切点分别为
,
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4023bc2fbf5be9afb92f72def8368b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f52cb58b6bc5d71030463ba7e28134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
(Ⅰ)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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2017-08-14更新
|
1787次组卷
|
3卷引用:山东省淄博市2016-2017学年高一下学期期末考试数学试题
9 . 某班共有6个数学研究性学习小组,本学期初有其它班的3名同学准备加入这6个小组中去,则这3名同学恰好有2人安排在同一个小组的概率是
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知函数
,(
为常数)的图象过点
.
(1)求函数
的值域;
(2)若将函数
的图象向右平移
个单位后(作长度最短的平移),其图象关于
轴对称,求出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23732fed2ed5b40d4909447b6342457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45e5cdcc3cf3ca21f12edaf5397ddbd9.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c19a100b65d9cec918ce68d3082cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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