10-11高一上·江西新余·阶段练习
1 . 若函数
同时满足:①对于定义域上的任意
,恒有
②对于定义域上的任意
,当
时,恒有
,则称函数
为“理想函数”.给出下列四个函数中:⑴
⑵ ![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/c143d250c56543179ad3a6d9f2447286.png?resizew=65)
⑶
, ⑷
,能被称为“理想函数”的有____________ (填相应的序号) .
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/40962e89de904f59a3eb6ae82f5c2dfd.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/ed8f3c9fbf6e43b8896cbd80f7bd5f6e.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/ee54adcf45d8484c9372763679bb1a5c.png?resizew=115)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/14d04e7f69dc47ee94fa8ab5c9ac8202.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/7d2d1c7aa55f49f187e044158629bbfa.png?resizew=49)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/a7cc2a25ee8048b7835a20f7f898981f.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/40962e89de904f59a3eb6ae82f5c2dfd.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/e16110ad54bb413ab43aa7a662fc75f5.png?resizew=63)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/c143d250c56543179ad3a6d9f2447286.png?resizew=65)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/ea9feb1b9f644d44bee71d96ae541d18.png?resizew=12)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/64f77c5259394807bc0c62f8d91deb98.png?resizew=91)
![](https://img.xkw.com/dksih/QBM/2015/1/19/1571967753633792/1571967759482880/STEM/15a6d5242dc64538b0e9c215ab84b4e4.png?resizew=135)
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11-12高三上·广东云浮·阶段练习
名校
2 . 若定义在
上的函数
对任意的
、
,都有
成立,且当
时,
.
(1)求证:
为奇函数;
(2)求证:
是
上的增函数;
(3)若
,解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ba8542fbe02e78cf3948c9abea9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f38f2297dbbff0a5e1570cf072282b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c72538ab0846e59aff390c4c79158e2.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed4a43f81fa25b42b3cce2d918c1054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30104efb09cd570a1be930ee6f6d8de1.png)
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10-11高一上·吉林延边·期中
3 . 已知函数
,
(1)求函数
的定义域;
(2)判断
的奇偶性;
(3)方程
是否有根?如果有根
,请求出一个长度为
的区间
,使
;如果没有,请说明理由?(注:区间
的长度
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a05b49871c833b98cfca4f9f6fcc25.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26af862ac8e4e2fe03204b0463a7a789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f649784a05e98b05dac141227c72e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8aeacedd66fad07a8782f620d17f47.png)
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2014·山东青岛·一模
名校
4 . 在实数集
中定义一种运算“
”,对任意
,
为唯一确定的实数,且具有性质:(1)对任意
,
; (2)对任意
,
.关于函数
的性质,有如下说法:①.函数
的最小值为3;②.函数
为偶函数; ③.函数
的单调递增区间为
.其中所有正确说法的个数为 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd94e5c210921dfbe11796b1fc97cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb77a7d41b4ca1f0b046ee28a89381f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe36e1cfed2a33ecd27e7713a3f6901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c6d30d53bc495cce4662c1503f25e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fea33e81a034bf8035a296b66fa8772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60cce332317884d04b38b1ebe8a50d18.png)
A.0 | B.1 | C.2 | D.3 |
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