求下列函数的定义域:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cadfb0dd6909ac6cc4874677f66383dd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211a95a010ca7a68e198de7fb86e4b3f.png)
更新时间:2016-12-05 00:30:06
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相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】设函数
的定义域为集合
,函数
的定义域为集合
.求:
(1)集合
,
;
(2)集合
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eaf8d22be7cbef53b425438b45e328b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece2e3875cb894dbf5fb26309a5e9103.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(2)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c64f0c30e9972e40b958702e803616.png)
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】设函数
在
的值域为集合
,函数
的定义域为集合
.
(1)若
,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd77e05b4ca37d926b10237c7a7ab77c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8965bf16556cea45e161868ea585ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db6245caec0d32bf93d14852aa19619f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5c53724ad51415d716fcfb24bb80a9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc5ef7cc3d811acb909f8920130fbbd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】解关于x的不等式:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca46cc3ddc52aa7f585eeaedc389e49.png)
(2)
(其中
)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca46cc3ddc52aa7f585eeaedc389e49.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0c34cd5ffe23feef227092db2da71f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
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解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知关于
的不等式
,其中
.
(1)当
时,求不等式的解集A;
(2)若
,试求不等式的解集B;
(3)若原不等式的解集C中所含整数最少,求C中的最小整数,以及实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a31932e4789212e301bec67f3e125d96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b369eb031bad872b0d3a9cf746119f4c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
(3)若原不等式的解集C中所含整数最少,求C中的最小整数,以及实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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