解题方法
1 . 设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba24a5dce47fbd2a79a593ca0be5069.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8011eeefc40482bd0e627d84a30aeb19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba24a5dce47fbd2a79a593ca0be5069.png)
您最近一年使用:0次
解题方法
2 . 已知
,
,
,则
,
,
的大小关系( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/726a118721407cd3567c37211f7d4642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c525c03ab7683a72b2f067cfc288368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c1301251f5125d62021ab259f54700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
3 . 已知函数
和
,
(1)若
,求
的值;
(2)若存在实数
,使得
成立,试求
的最小值;
(3)若
,对任意的
,
,都有
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6263576e5c3f2324a8dac311476bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b355e85d912b1f25ed1ca3b36e636784.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5998a43d6bb050f648b93c635c008dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d09acdce3deb0bb066dca07aa96198.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a00e51c75b6db3cdc521cf77f361c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a074019a75a26e8d6b9147731a29a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0105d3297379e68f708a3ab8d64b6cda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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4 . 函数
,若
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c2b1dca48474b915853776d814447aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ba392d3e708fd13634343e9e87a0a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802b63bc47020528ee43be34ad045bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c5b69176884bcdc4239d60a093ed7c3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知实数
为函数
的零点,
为函数
的零点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f947d030c265753e4201ae4d9c69e99.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0576a0520249b48fd302a0d47317678f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34516f09a665374834b1b165e1a43b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f947d030c265753e4201ae4d9c69e99.png)
您最近一年使用:0次
6 . “
”是“关于
的不等式
成立”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752455799e49f846e2601304fec5d3b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7318e4b43efc661783af23533246c87.png)
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
解题方法
7 . 设定义在
上的函数
满足
,
为奇函数,当
时,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f0d2a39035b8046045727e60443ace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81e15b871dd32b2438ef8025bcc42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459d1d8477fd46ece5a65d40e32b4bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab30faa78cc53c104f61b1cd906c365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7dec97c55a499d6b7120a07c4979f55.png)
A.1011 | B.![]() | C.![]() | D.![]() |
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解题方法
8 . 幂函数
的图象关于
轴对称,且在
上是减函数,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3996cdf44a2dff6d7ffb9da0f60a17f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
解题方法
9 . 已知函数
为偶函数.
(1)求
的值;
(2)若
,判断
在
的单调性,并用定义法给出证明;
(3)若
在区间
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c619d25fca5ba6b0d20909b5a96914ac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3cfdcaeb101a7a7e434b10102e5a4af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96425bda56bbb42569b1fe47ba21d3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337a23f9bf790be6e03b88fb2d03f18b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
10 . 已知定义在R上的函数
满足
对任意的
,且
都成立,设
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7726b1ae84464b94bf8d37aba5ea1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ca3aa2d1ba52e82613d0d65d800e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a07e81aca4723ae15fce33a77630682.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次