1 . (1)函数
的定义域是_____ ,值域是_____ ;
(2)函数
的定义域是_____ ,值域是_____ ;
(3)函数
的定义域是_____ ,值域是_____ ;
(4)函数
的定义域是_____ ,值域是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796e9d1ce6db5a9ae006b16a5511707d.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b026fe3e532108d7a415f5c4f0f1ce12.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884e534313d810d5fc36b95f9fcaa08.png)
(4)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f991e8e0c58db568167502e3588fea3.png)
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名校
2 . 对幂函数
有以下结论
(1)
的定义域是
;
(2)
的值域是
;
(3)
的图象只在第一象限;
(4)
在
上递减;
(5)
是奇函数.
则所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54502ab42cce6f44db9ce276081a5b76.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86aeee73689e975fc080ba9623465b47.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
则所有正确结论的序号是
您最近一年使用:0次
3 . 设集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
____ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee10ef603ebe05b867b6d6941fb959d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7adfc0154fddfcfaca969fb98e9cd1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
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2018高一上·全国·专题练习
4 . 已知f(x)=
,则f(x)的最小值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00dbb6c8ee6486b5700dbc468791d05b.png)
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5 . 幂函数
的图象过点P
,则幂函数
的值域为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36636dab1b35a55731949e51c74a8e26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次