2013·福建泉州·一模
解题方法
1 . 已知周期函数
的定义域为
,周期为2,且当
时,
.若直线
与曲线
恰有2个交点,则实数
的所有可能取值构成的集合为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81254eca1f80aaf3e24712e0ce36bce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0826fcb806662f344814a7c4dcfd5263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a0ac4bfe4ded00b4400f913e0c9862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() |
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2013·福建泉州·一模
2 . 如图,在棱长为1的正方体
的对角线
上任取一点P,以
为球心,
为半径作一个球.设
,记该球面与正方体表面的交线的长度和为
,则函数
的图象最有可能的是( )
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/c4d90d89ef724dd58a18991d8d3cb93d.png?resizew=132)
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/fe8c3e707c084121af31773c5a7a4f73.png?resizew=119)
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/f408040736064f26bd37ba183112df20.png?resizew=29)
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/a96bef2eb6bf455892a04a4cc0f883f5.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/e6ac5015b88846e9868a85d9e3135930.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/1bb64984febf4249aa3a48c74afb2e4b.png?resizew=51)
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/1194711e88e04849853eb136a20730b4.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/1194711e88e04849853eb136a20730b4.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2013/9/6/1571342527635456/1571342532927488/STEM/c4d90d89ef724dd58a18991d8d3cb93d.png?resizew=132)
A.![]() | B.![]() | C.![]() | D.![]() |
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2012·福建龙岩·一模
解题方法
3 . .某同学为研究函数
的性质,构造了如下图所示的两个边长为1的正方形
和
,点
是边
上的一个动点,设
,则
. 请你参考这些信息,推知函数
的图象的对称轴是_______ .
![](https://img.xkw.com/dksih/QBM/2012/8/4/1570952034033664/1570952039448576/STEM/2325c230a56642dbbf9967a6a8f69bf1.png?resizew=263)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6480f384476190883f06c0289c7519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75369931b4a665aa92fba4a28136a8da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/184d19597efb1e5e4c1e1338300ad382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://img.xkw.com/dksih/QBM/2012/8/4/1570952034033664/1570952039448576/STEM/6ad904aa-c6b0-453c-9e95-5a6dbcda6cf4.png?resizew=242)
您最近一年使用:0次
名校
4 . 函数
的部分图像大致为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f8a0ac91ca429f7cf530a2b5b4e9865.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
5 . 函数
的图象大致为
![](https://img.xkw.com/dksih/QBM/2015/3/26/1572038754500608/1572038759849984/STEM/9b05820bc48041e8ae6fe55268cca1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be7f4b14ef692bdc15f712d5e8d6e1ef.png)
![](https://img.xkw.com/dksih/QBM/2015/3/26/1572038754500608/1572038759849984/STEM/9b05820bc48041e8ae6fe55268cca1da.png)
A. | B. | C. | D. |
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6 . 函数
的一段大致图象是( )
![](https://img.xkw.com/dksih/QBM/2016/8/4/1572959918194688/1572959924240384/STEM/4995c9f0196e4c7c8895668b78c2c53b.png?resizew=85)
A.![]() | B.![]() | C.![]() | D.![]() |
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2014·福建福州·一模
7 . 函数y=lnx-1的图象关于直线y=x对称的图象大致是
A.![]() | B.![]() | C.![]() | D.![]() |
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2014·福建·一模
8 . 已知函数
的定义域为
,若常数
满足:对任意正实数
,总存在
,使得
成立,则称
为函数
的“渐近值”.现有下列三个函数:①
;②
;③
.其中以数“0”为渐近值的函数个数为
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/a47cc0ebb23b4890b9a8278c195076bc.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/f5a1a3563b684e7cad417fec66ecae13.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/24ad160ce31043e1a541d3ec02fdb13b.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/f92dff25e045499ba6b1695fc780a6c1.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/bb2e19944b2f4f26aca365b6ffb251ef.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/d9d1c27a16044beb921a337fb61a3601.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/24ad160ce31043e1a541d3ec02fdb13b.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/a47cc0ebb23b4890b9a8278c195076bc.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/bf69fe26c4194c1982d14bae118cbd6c.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/f68bfce8d1884dc0840f631a6077af1b.png)
![](https://img.xkw.com/dksih/QBM/2014/6/12/1571770112770048/1571770118512640/STEM/8736d16ae1bb4d9f96769add5cdf0b1a.png)
A.0 | B.1 | C.2 | D.3 |
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