名校
1 . 函数
是定义在
上的奇函数,对任意两个正数
,都有
,记
,
,
,则
大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d91b003e24206baf259fc9370664b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f7bbb29aa745ca2720e4f975bd59b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67af2359c02b0488a34a3994f56cef69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da9849ecc1fb59a32e2365ad8e61c4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd716505cab3cd93619cb5e610e0485a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-04-26更新
|
1430次组卷
|
7卷引用:云南省德宏州2020届高三上学期期末教学质量检测数学(理)试题
解题方法
2 . 已知二次函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea2fdda67d2a98caafce60658a57c15.png)
(1)若
为偶函数,求
值;
(2)若
在
单调递增,求
的取值范围;
(3) 若
与
轴交于两点(-3,0),(1,0),求当
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea2fdda67d2a98caafce60658a57c15.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(3) 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51172727991e0307d8e95c552308f3a5.png)
您最近一年使用:0次
名校
3 . 已知函数
,若a、b、c互不相等,且
,则abc的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a079488d23312cc5eab6c737adb4a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55825f684fe648e9e2e53959fdf22a6b.png)
您最近一年使用:0次
2019-02-20更新
|
1347次组卷
|
2卷引用:云南省曲靖市陆良县第八中学2019-2020学年高一上学期期末数学试题
名校
4 . 已知函数
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a95b47dd88bb45ff67ea458c237483.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea4c7ae77f4c0780066259c72afb345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51af1e8384acae05363bc68005c0892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a95b47dd88bb45ff67ea458c237483.png)
您最近一年使用:0次
名校
5 . 定义在D上的函数
,如果满足:对任意x∈D,存在常数M,都有
≥M成立,则称
是D上的有下界函数,其中M称为函数
的一个下界.已知函数
.
(1)若函数
为偶函数,求a的值;
(2)求函数
在
上所有下界构成的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a735f9dfec659ad29b66e8e0c89fa6dd.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7fce5551ee775e657a8c9fff757ee9.png)
您最近一年使用:0次
名校
6 . 已知函数
且
是奇函数.
(1)求实数
的值;
(2)若
,对任意
都有
恒成立,求实数
的取值范围;
(3)设
且
,若
,是否存在实数
使函数
在
上的最大值为
?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea40ea8f8cb80c7502d4bbdfdbb060e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b72044b1c0296cbcfaa676aa4bd8a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc2e93cee2e6a921b66d250bd046b33.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63dd37de8fa5964b3db35932c740c50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851eae00e3369068e33a7e6420483883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e824e5c02d1ffe5dfd7962723bbc839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9a6a1590bce244538af58db59dcf01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3557c2f949c4a8af4476e14185c5846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4798e622d92f5f8b2df5bc9d405df89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0149a86bdc6d233b1c59bd49991af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd330acca8e17f5ff9aca1f0f312df50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dcd9a5b871b1de825b035115f2efa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2019-01-28更新
|
947次组卷
|
3卷引用:【全国百强校】云南省玉溪一中2018-2019学年高一上学期期末考试数学试题
名校
7 . 函数
满足:
,已知函数
与
的图象共有4个交点,交点坐标分别为
,
,
,
,则:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185c3cbc3b741b67f20cfc201350199a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d8a60d134e215cd158fcc990123619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc98cd6986b8b30aa627853d88a1ffca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7b73af3dc8b4f5cbf01551ce6f78fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9d4f56dc2eb55aaebcb5dcc125eaf72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee0b5e6bf5115cf24c4ed4010274423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0225089bff08452cb44878e57fa0520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185c3cbc3b741b67f20cfc201350199a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-01-28更新
|
655次组卷
|
4卷引用:【全国百强校】云南省玉溪一中2018-2019学年高一上学期期末考试数学试题
解题方法
8 . 已知函数f(x)是偶函数,若在(0,+∞)为增函数,f(1)=0,则
<0的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf66e5655d695407be91f742e04f4ea5.png)
A.(![]() ![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知函数f(x)=
是奇函数,g(x)=log2(2x+1)-bx是偶函数.
(1)求a-b;
(2)若对任意的t∈[-1,2],不等式f(t2-2t-1)+f(2t2-k)<0恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4fd6f1bf2edab9c3fda95d49dab799d.png)
(1)求a-b;
(2)若对任意的t∈[-1,2],不等式f(t2-2t-1)+f(2t2-k)<0恒成立,求实数k的取值范围.
您最近一年使用:0次
10 . 已知函数f(x)=
在R上为减函数,则实数a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b9bed19a852810d8ab221d6f27e7ad6.png)
您最近一年使用:0次