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1 . 函数y=(a>1)的大致图像是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-05更新
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4卷引用:2017届辽宁鞍山一中高三上一模考试数学(理)试卷
2017届辽宁鞍山一中高三上一模考试数学(理)试卷2019届福建省厦门双十中学高三暑假第一次返校考试数学(文)试题(已下线)活页作业17 指数函数图像和性质的应用-2018年数学同步优化指导(北师大版必修1)江西省贵溪市实验中学2019-2020学年高二下学期数学(文科)期末测试试题
2 . 已知定义在R上的奇函数
,满足
恒成立,且
,则下列结论正确的是
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331731456/STEM/72be2f71c254449495db38a21d35f53f.png)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331731456/STEM/efdf5ab1527344de947325be186146fa.png)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331731456/STEM/43b9c2c2c78140cab99ef36b2855eba6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2016-12-04更新
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2卷引用:2016届辽宁省鞍山一中高三上学期12月考二模理科数学试卷
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3 . 已知函数
,若
,则实数m的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4edb86de4305b8fa0da4142ba7788650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7186e86c9ca561c942d55284d8d87ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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8卷引用:辽宁省鞍山市第一中学2018届高三上学期第一次模拟考试数学(文)试题1
4 . 已知定义在R上的奇函数
,满足
恒成立,且
,则下列结论正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d1a7adaaa9127c58958cad157c13db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f696e38139b4d167dff43be28161d9e9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2卷引用:2016届辽宁省鞍山一中高三上学期12月考二模文科数学试卷
5 . 当
,不等式
恒成立,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17260a6fd0a67fd669414cf8d5dbea55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20420a702b0acf47da662fa9b03fb273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5卷引用:2016届辽宁省鞍山市一中高三第四次模拟文科数学试卷
6 . 已知函数
满足
,且当
时,
,若当
时,函数
与
轴有交点,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab990e9a7eb785fa7f567db4660a6e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b64cd020e82e32d7ac4a49c04c66501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3846f4041d072925a81b20d8574d927c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c390c357b16588b9828116e333339bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
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4卷引用:2016届辽宁省鞍山市一中高三第四次模拟文科数学试卷
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7 . 若集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f9e7b51193a47f16c546518d62bbac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec02b9eb316d41fd065b9d2f63f509b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24262f2891e78060e8f2a01970487542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f9e7b51193a47f16c546518d62bbac.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5卷引用:2016届辽宁省鞍山市一中高三第四次模拟文科数学试卷
8 . 已知
,方程
有四个不同的解
,且
,则
的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec73aaf72ba59f65a5262b6493c53b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e0cac972dbfb51b7a8a45c6cf521e7.png)
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解题方法
9 . 已知
,方程
有四个不同的解
,且
,则
的取值范围为_________ .
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331805184/STEM/47004e929731489697c4f85fcd4559c6.png?resizew=147)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331805184/STEM/d23f61913943466cba69eaf9f2bd6975.png?resizew=60)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331805184/STEM/8c7ca6bdf56f49bba3f502236201ca3d.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331805184/STEM/98d3a8bfbdc3487f9a6983e410c03586.png?resizew=105)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331805184/STEM/9136109251304a2aa75f064b45f7f146.png?resizew=115)
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10 . 已知
,若
恒成立,则
的取值范围是
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331674112/STEM/58a93aa365bf47029d4de9f8a5c0169a.png)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331674112/STEM/0ac2f04bac2a475fae211f4f595cc519.png)
![](https://img.xkw.com/dksih/QBM/2016/2/15/1572475325956096/1572475331674112/STEM/0a48ab460e584741b66aa3567ad673d2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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