已知函数
的定义域为
,求
的定义域
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc68350d4a250d83aef73d7e2794816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a480bda2a4934f5746aba64cf0817295.png)
19-20高一·全国·课后作业 查看更多[1]
(已下线)专题18函数的定义域和值域- 2020年初升高数学无忧衔接(沪教版)
更新时间:2020-08-19 23:22:56
|
相似题推荐
解答题
|
适中
(0.65)
名校
【推荐1】设命题
:函数
的定义域为
;命题
:关于
的方程
有实根.
(1)如果
是真命题,求实数
的取值范围.
(2)如果命题“
”为真命题,且“
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d29504178fad480b9f22e112e04b889d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f2f9e8915e9db983f027786d16c2d5.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)如果命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
解题方法
【推荐2】已知定义在
上的函数
满足下列条件:①对定义域内任意
,恒有
;②当
时
;③
.
(1)求
的值;
(2)求证:函数
在
上为减函数;
(3)解不等式 :
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0e0eb3d354a1b4454b39b6cd4c80d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9defa23d2a9b88f4dd10e0ea4bef2189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6228b3fd62e53d3134a146f689e4a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c6cf9152e0d02b83eb22b01722d29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a1b1fdcdde97a8c9e9339b2f33c5d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e7f2147dd9d31926993e64ec6995c1a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7c0d7c2fce3b92949095ea682e735d.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cead849c0dc4a82285808a7e081ad75c.png)
(3)解不等式 :
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b96be8841e5b66d3a9fae317c4cb0c3.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐3】已知
,
,求
的最大值及相应的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af09e8c7f39d33efd09ba38b3e84f7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45895cc9004c3c3b8bf58c325498c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/400a02ca41e884e86425a61d166646da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次