2019高三·全国·专题练习
解题方法
1 . 已知函数f(x)是定义在R上的奇函数,其最小正周期为4,且当x∈
时,f(x)=log2(-3x+1),则f(2021)等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90a9879a4d64a4eaa918c0c830282a0.png)
A.4 | B.2 | C.-2 | D.log27 |
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2020高三·全国·专题练习
解题方法
2 . 已知奇函数f(x)(x∈R)满足
,且当x∈[-3,0)时,f(x)=
+3sin
x,则f(2021)=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8b008a160e2fabf83483b440d53c1f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf35027e76f8ea593f82023973d4aba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
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2020高三·全国·专题练习
解题方法
3 . 设f(x)是定义在R上的周期为3的周期函数,该函数在区间(-2,1]上的图象如图所示,则f(2 018)+f(2 019)=( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/29/7e89dbcf-7080-4d08-9b4d-9a6192a14955.png?resizew=222)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/29/7e89dbcf-7080-4d08-9b4d-9a6192a14955.png?resizew=222)
A.2 | B.1 | C.-1 | D.0 |
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2020高三·全国·专题练习
4 . 已知
是定义在
上的函数,并且
,当
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651492c53f8747a2da821e502a813313.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6521843adf5dad7bc62249dde5f1503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0d9e40be9c8dc27e62d7ab9bdc8959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a18ca67c2770b98f36dbfd802595a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651492c53f8747a2da821e502a813313.png)
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2020高三·全国·专题练习
名校
解题方法
5 . 定义在
上的奇函数
满足
,且当
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e347802a7b50c9cb492e240afd17194.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3b657ebd1733b4f19dcbec44919924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1b2d6cdabcae4971e55ddde97384b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e347802a7b50c9cb492e240afd17194.png)
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2020高三·全国·专题练习
解题方法
6 . 已知函数
是定义在
上的奇函数,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec33e21b7e0d459054edd584f78b477.png)
,且
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918bf429ec528a5a3d8e53d1bf2cd687.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec33e21b7e0d459054edd584f78b477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a1846da3857cf99cf674ef103058e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd65e75c26eae26e542c456f5450ce91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918bf429ec528a5a3d8e53d1bf2cd687.png)
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2020高三·全国·专题练习
解题方法
7 . 已知函数
对任意
,都有
,
的图象关于
对称,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94aa3c0a9e73c16b2fde3db2aed07f7c.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfaa917ab79611c48b70aa2ff631210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be344d1925b25e44f3f8b34d2c193ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d002d8423808d081345bdac6c25f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94aa3c0a9e73c16b2fde3db2aed07f7c.png)
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2020高三·全国·专题练习
解题方法
8 . 已知偶函数
的图象关于
对称,且当
时,
,则
时,
=_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909f54c53772b463bc11ea061d954fc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/399c1ac5866156a1e38fcc50b063b058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2020高三·全国·专题练习
解题方法
9 . 已知函数
满足
,
,则
等于____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eba7617a4dda943c7746b956173f7a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57457379efecec3a8f98377bc5c65d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35601a607f7f066559efea35b15baec7.png)
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