1 . 设
是函数
的反函数,若
,则
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f52f6ee8ead43c46f73102b87a2d943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ffabf87dabb6d0d6a2d18f54b018f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67211139d253327245417a0b0e327c69.png)
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2020-05-13更新
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181次组卷
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4卷引用:上海市奉贤区2019-2020学年高一下学期期中数学试题
上海市奉贤区2019-2020学年高一下学期期中数学试题(已下线)高一上学期期末全真模拟04-2020-2021学年高一数学期末考试高分直通车(沪教版2020,必修一)(已下线)4.3 指数函数与对数函数的关系-2020-2021学年高一数学课时同步练(新人教B版必修第二册)沪教版(2020) 必修第一册 单元训练 第5章 反函数(A卷)
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解题方法
2 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0406d8af75dc2fb374a2cbfb895264d1.png)
________ ;若关于
的不等式
在区间
上有解,则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c04caf886b24ac9fee263e203e89fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0406d8af75dc2fb374a2cbfb895264d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d9aa7cd50cbdd8a5b6cfaacbad0af29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc7bc07dde43da45e75bb38793257f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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3 . 已知函数
,其反函数为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe5b8bd6effcef37785bbfa2e184c6a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9adcb77d0b6a03f1af6d0c91023a47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe5b8bd6effcef37785bbfa2e184c6a.png)
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4 . 在下列命题中,真命题是_________ (写出所有真命题的序号)
(1)互为反函数的两个函数的单调性相同;
(2)
图像与
的图像关于原点对称;
(3)奇函数
必有反函数
;
(1)互为反函数的两个函数的单调性相同;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a156f4e89a8b0e981a3a2f12671c2c0.png)
(3)奇函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a2a1822ac7392b61b2c0fffc1fbc05.png)
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5 . 若函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab074b51c54b4c055aa5eff90dca955.png)
存在反函数,则
的取值范围为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab074b51c54b4c055aa5eff90dca955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3210274e57cc0487a58b99ea274b8aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 若定义在
上的函数
满足
.且当
时,
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95237fabc1b26b98ed853db6a532ba1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3b657ebd1733b4f19dcbec44919924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6330540758a21f46fc7a6d1e6328d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2307576e00267bf0df77332905a775ba.png)
A.存在![]() ![]() ![]() |
B.对任意![]() ![]() ![]() |
C.对任意![]() ![]() ![]() |
D.对任意![]() ![]() ![]() |
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7 . 设函数
存在反函数
,且函数
的图象过点
,则函数
的图象一定过点______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8e2b8d528e8a632b893eeae68f3eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663d94efcc8a8a4b5a3563e94eb8fbb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7379e527380b031a570a190ddea000.png)
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8 . 函数
在区间
上存在反函数的充要条件是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a2d1e6b545afd3b56c5fcb37c70213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
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9 . 若函数
(
为正实数)在
上存在反函数,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1982786864f37e6f954e8d70f9970620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5511a368692de27c58ec48ce968de4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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10 . 若函数
的反函数为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70679d829de96f5fb94a14b5a40f86de.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03f674333900fd72b9c23c19cd22768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70679d829de96f5fb94a14b5a40f86de.png)
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