名校
1 . 已知函数
.
(1)若
,
,在格纸中作出函数
的图象;
(2)若关于
的不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086737a40f25986f035bf338664c5107.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/22/71936017-6e46-4140-8f47-3e957c5135f8.png?resizew=220)
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2017-08-23更新
|
93次组卷
|
2卷引用:广东省广州市广大附属实验学校2018届高三8月份调研数学试题
2 . 已知函数
,其中
是自然对数的底数,若直线
与函数
的图象有三个交点,则常数
的取值范围是
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571982742347776/1571982747435008/STEM/dd72d4b028e34df99cf96d85bf1a5a75.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571982742347776/1571982747435008/STEM/cfac9abaeda44f8c9e4c16a31704a6b1.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571982742347776/1571982747435008/STEM/436c645347ef4cdf91b76c794543f8ee.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571982742347776/1571982747435008/STEM/c809e438205943a0a2f109157535ffe2.png)
![](https://img.xkw.com/dksih/QBM/2015/2/6/1571982742347776/1571982747435008/STEM/eb2222c535a247039bdcd28896f71f47.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
3 . 若函数
的图象与圆
恰有4个公共点,则
的解析式可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9ab11ba6b230c4309e1b899eb58daae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2014·广东广州·一模
4 . 函数
的图象大致是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5877b36b0def7389b8fb66e8491644.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2014高三·全国·专题练习
5 . 函数f(x)=|log2(x+1)|的图象大致是( ).
A.![]() | B.![]() | C.![]() | D.![]() |
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2014-03-12更新
|
438次组卷
|
3卷引用:2015届广东省华南师大附中高三5月三模理科数学试卷
2010·广东·一模
6 . 若函数
的图象如右下图所示, 则函数
的图象大致为( )![](https://img.xkw.com/dksih/QBM/2010/5/7/1569720567676928/1569720572444672/STEM/8eefa34cbac74e038a3774a71082b804.png?resizew=124)
![](https://img.xkw.com/dksih/QBM/2010/5/7/1569720567676928/1569720572444672/STEM/e9a4072e0e8747fbb12001226bea116e.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2010/5/7/1569720567676928/1569720572444672/STEM/d312360964044a85947144dd1948f870.png?resizew=81)
![](https://img.xkw.com/dksih/QBM/2010/5/7/1569720567676928/1569720572444672/STEM/8eefa34cbac74e038a3774a71082b804.png?resizew=124)
A.![]() | B.![]() | C.![]() | D.![]() |
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