函数
,
的定义域为集合
.
(1)求集合
.
(2)若
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1048f46c7beb47936013d34f89fb7ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e208d37c9441705fea7109bdd696fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
更新时间:2019-01-10 06:20:25
|
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知全集为
,函数
的定义域为集合
,集合
或
.
(1)求
;
(2)若
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0557eba4485608f918819a82e89ab59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf5f05a9e5690b8696cf93172eaf033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c751a6e261e30b9db5a369bc7ea36d5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c9730683c1b1ef23176a4148fb3b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c06b5dc149398964ef585b0f8cc0ae96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf10c55340c16450cdc1c809fd328ab.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
的定义域为集合A,函数
的值域为集合B,若
, 求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7128bc9963dfc35c44db267fa1e1f95b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc977dbae20f8baff1895149a1bcba0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c4a700c08d3552f11539bbd2427722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7d8c5c412d728c11750275dfa0e1ef.png)
(1)若函数
的定义域为
,求实数
的取值范围
(2)若
,求函数
的值域
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7d8c5c412d728c11750275dfa0e1ef.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da3a6d011679952771607b3a166676b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】设集合
,
,全集
.
(1)若
,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633b2d0e53b859a4d43d5e39fefc27b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a5cabb9fa4a371ab945251b5d7998d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e48795e7379289ed58ad724e997934.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.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)
【推荐3】已知函数
.
(1)判断函数
在
上的奇偶性,并证明之;
(2)判断函数
在
上的单调性,并用定义法证明;
(3)写出
在
上的值域(不用书写计算推导过程).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acdd1b66c6bd1fbe8e0954c2d5371335.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(3)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
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