名校
1 . 已知
,关于
的一元二次不等式
的解集中有且仅有
个整数,则实数
的取值范围为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30246f7d5aac981371ffdf5dccbb4095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2016-12-03更新
|
445次组卷
|
2卷引用:2016届江苏省清江中学高三周练数学试卷
2012·黑龙江·二模
名校
2 . 已知函数
(1)解不等式
;
(2)若不等式
的解集为空集,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7b2dc826e500e362c22ddb6bfb39c8.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0abe4960954bb3144b7e86d4233e747.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d99e3e25ce03391fcbb4057e79414ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
443次组卷
|
5卷引用:江苏省南京市联合体学校2018届高三调研测试数学(理)试题
江苏省南京市联合体学校2018届高三调研测试数学(理)试题(已下线)2012届黑龙江省哈六中高三第二次模拟考试理科数学试卷(已下线)2014届辽宁省五校高三上学期期末联考理科数学试卷(已下线)2013-2014学年黑龙江省哈尔滨四中高一下学期期末考试数学试卷新疆兵团第二师华山中学2018-2019学年高一下学期期中数学试题
11-12高三上·江苏扬州·开学考试
名校
3 . 设
,
,函数
.
(Ⅰ)设不等式
的解集为C,当
时,求实数
取值范围;
(Ⅱ)若对任意
,都有
成立,试求
时,
的值域;
(Ⅲ)设
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d80138a223c9633ebe2b24b3abd7037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f28721d52cd2fad81f1c651b1feab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb713ef84dd1cca1df8e0c7c7ea6cab.png)
(Ⅰ)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafb511452fb3b93485fe41c73810efd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅱ)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545931b962cf570712d04888b57093f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅲ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d307a610ea0f37a3bba8e8f65f18338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfcc567b95a320abcb25509923cd001.png)
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