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解题方法
1 . 下列说法中,正确的有( )
A.函数![]() |
B.函数![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.函数![]() |
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解题方法
2 . 已知函数
(
且
),![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc3bdec262e05c4b4c3bb0740af8842.png)
(1)求不等式
的解集.
(2)若函数
过点
,并且函数
满足
,求实数a与k的值.
(3)在(2)的条件下,判断函数
在
上的单调性(不必说明理由).若
时,不等式
任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba45e9db08ea78bad8b87c6e67b55b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74110bc818c2f5a53d63451c5251eb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9933657444761c72ceb4b0c9017578a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc3bdec262e05c4b4c3bb0740af8842.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68225d7ad08d86a5a634eb2e6b83542.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/010c74de86f432499fe7246a199721ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b588232e4a4af8221768af9e332b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5272fd043d44affb650f15b4d5c934b3.png)
(3)在(2)的条件下,判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d913b3ffc1962e2c255e6ea4c4fd0fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3970809a652cf8ad7b619aaaed353f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c631bc5567447afcb4e4a19dfae6db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26497bc1d93c4679b629bc909038d595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
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2022-10-24更新
|
351次组卷
|
2卷引用:天津市四校(杨柳青一中、咸水沽一中 、四十七中,一百中学)2020-2021学年高一上学期期末联考数学试题
解题方法
3 . 下列命题中正确的个数是( )
①函数
既是奇函数,又是R上的增函数
②不等式
的解集为R,则实数
的取值范围为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a2b13d4eb8aaff7042dd6c54469f45.png)
③
的定义域为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e3cefebfef1b8c91ad2e9ede5c195e.png)
④若
为偶函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8184d4f959385db2231b2cc35606e1.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc0b1b3ff7b701b30cef0ac691448c96.png)
②不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9666d177284abf2e54135a40ec0e823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a2b13d4eb8aaff7042dd6c54469f45.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6f77058ce9029f6845c882dc0e6a8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e3cefebfef1b8c91ad2e9ede5c195e.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750620faa69d866ed75eeab194f0218d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8184d4f959385db2231b2cc35606e1.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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4 . 下列命题正确的有( )
A.已知函数![]() ![]() ![]() ![]() ![]() |
B.设![]() ![]() ![]() ![]() |
C.设角![]() ![]() ![]() |
D.使得![]() ![]() |
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