解题方法
1 . 设集合
,B={x|
<1},
.
(1)求
;
(2)若
,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572410572087296/1572410577395712/STEM/91da22e8f8584219b39044c01a2c0f35.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572410572087296/1572410577395712/STEM/15ac548da061424cbaaa773b5c19bfba.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572410572087296/1572410577395712/STEM/119ddd08bdb8472a99ca2cc2df78dfff.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572410572087296/1572410577395712/STEM/0a2e73498cc94e3b9ded4091244d683f.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572410572087296/1572410577395712/STEM/a4d1429b0ac8413ba61adfb62776a9b0.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572410572087296/1572410577395712/STEM/1d7f494e7b51402ca7e3d4a0d946ee83.png)
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2卷引用:2015-2016学年河北省定州中学高一下期中数学试卷
名校
解题方法
2 . 设定义在区间
上的函数
是奇函数(
,
,且
),则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b102e757b1d71a55103054730d4ca8fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73ee42c5bb20c6c645fcad310c7f4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd1b5c820f64b9c3033d2a34ee6a925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64392680c4f0db0cd3170d37c98b2946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cde6da5e4a71a3df6cd950ff1a90920.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9卷引用:2015-2016学年河北省定州中学高一下期中数学试卷
解题方法
3 . 已知函数
的定义域为集合
,函数
的值域为集合
,
.
(1)求
;
(2)若
且
,求实数
的取值范围,
![](https://img.xkw.com/dksih/QBM/2015/3/25/1572026941374464/1572026947035136/STEM/34e679bd9ea940c4a4f69692b47832ab.png)
![](https://img.xkw.com/dksih/QBM/2015/3/25/1572026941374464/1572026947035136/STEM/fa22ea20eebc44718de5180afb1c3a6d.png)
![](https://img.xkw.com/dksih/QBM/2015/3/25/1572026941374464/1572026947035136/STEM/311e99f0315c47caaed4063e98ac4382.png)
![](https://img.xkw.com/dksih/QBM/2015/3/25/1572026941374464/1572026947035136/STEM/67ad9872ef3049289563b9715a093ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771e9c4043ecf34fa45139427cda8773.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85bedff978a55b0a2b5218ec3b63aca.png)
![](https://img.xkw.com/dksih/QBM/2015/3/25/1572026941374464/1572026947035136/STEM/6698832fc9e1492da34c8fe050e11fb9.png)
![](https://img.xkw.com/dksih/QBM/2015/3/25/1572026941374464/1572026947035136/STEM/74e61940cb7947a4bdb92f4d0f2dba63.png)
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2卷引用:2014-2015学年河北正定中学高一下学期第三次月考数学卷
10-11高一上·黑龙江齐齐哈尔·期末
名校
解题方法
4 . 定义运算
为:
如
,则函数
的值域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18fb71f0467a746c9f6f61ed89587a0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c344717432e199fd2be760b3d88683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b0bf54762731fcfc5fca740ca97579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a23215980190efb9f24f3afcb13cb.png)
A.R | B.![]() | C.![]() | D.![]() |
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6卷引用:2014-2015学年河北省正定中学高一上学期第二次月考数学试卷
(已下线)2014-2015学年河北省正定中学高一上学期第二次月考数学试卷(已下线)2010年黑龙江省拜泉一中高一上学期期末考试数学试卷(已下线)2010年黑龙江省“五校联谊”高一上学期期末数学卷2017届河北武邑中学高三上学期周考9.4数学(文)试卷福建省厦门市湖滨中学2018-2019学年高一上学期期中考试数学试题(已下线)天津市南开区2021-2022学年高一下学期期末数学试题
13-14高二下·福建三明·期中
解题方法
5 . 关于x的方程
,在
上有解,则实数a的取值范围是
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816337932288/STEM/417d066b8c5d43209e5ad9b7182558f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cea01183c7e1762ee29781374590fb.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:2015-2016学年河北定州中学高一上学期周练一数学试卷