1 . 函数
的单调递减区间是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8daacb6558346d3381e0bca0defa2e24.png)
您最近一年使用:0次
解题方法
2 . 已知
,函数
.
(1)当
时,求函数
的定义域;
(2)若关于
的方程
的解集中有且只有一个元素,求实数
的取值范围;
(3)设
,若
,使得函数
在区间
上的最大值与最小值的差不超过1,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c76ef2d9b6ad8530682811ada6c1e4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a19f229fae6b755b76bdacf200c4d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1326beb4653dd170d1d7878e351598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8682c07954e4ba88e5766b1e005f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
3 . 已知
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e963eaf3844f93f7fca22e7f2b88c390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ab5941201d244939bb2d681c793974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434827cf44e867ad738d1ca899ab205e.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
4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba80365bfc518351c0c66ab7e2f14e27.png)
(1)求
的定义域;
(2)若
,
,求
,
的值(结果用含a,b的代数式表示);
(3)若函数
求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba80365bfc518351c0c66ab7e2f14e27.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0641068fdf9de4d868de9f9defd4df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4686efb271cd025e282547c4b2a6edd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930f7706c8f0a021d2e81f1cba24cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e215cb47345887b6320c4914b9682e06.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893a3c0f289c766c42051f4961e000d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c31d3c42dffec798d9eae6b1239950b.png)
您最近一年使用:0次
解题方法
5 . 已知
,
,
,则a,b,c的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bfea7a25658cebd114fed662491587c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ce2113caa4e462791a0a742f1db12f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664c8d19fc2cb3b03682715461f066cd.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 若对数函数
和函数
在区间
上均单调递增,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aed836238aee5b6084b5837e83535a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f153f03a6c71150698f38af2884ff51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
7 . 设
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca31afafd24949b4f36dccc002e7bff9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 函数
的定义域是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e9281d819252c3a12efb8dd31059f9.png)
您最近一年使用:0次
9 . 已知函数
(
,且
).
(1)求函数
的定义域;
(2)判断函数
的奇偶性,并说明理由;
(3)求使
成立的x的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f217a3002b68e41266d6529883c3958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ef5e024b2d975e7ccdc86a7c0b804c.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ef5e024b2d975e7ccdc86a7c0b804c.png)
(3)求使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41dc58a1d8cd6997b25a8c561a70f67f.png)
您最近一年使用:0次
名校
10 . 已知函数
.
(1)若
在区间
为单调增函数,求
的取值范围;
(2)设函数
在区间
上的最小值为
,求
的表达式;
(3)设函数
,若对任意
,都存在
使不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e2f04997794c1b76b7184d0748673e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8f87ee3d646cc329ad8d25ff83b0af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d5a5e70f64f0933ae1e4ddec5fa2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17641d15644d5fb2c79fd1016b21520f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89294952c2b9bce442a4ce7ad564b78e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次