1 . 已知函数
的定义域为
,则函数
的定义域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b531c04fedcd9539eef63e53c60cbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0631dd45b19d87738d333f43dc5162f4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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真题
2 . 已知函数
的定义域为R,
,且当
时
,则下列结论中一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca4aebc14ae7a2fa0ec3cc2881be9f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b83a660527359758db64e6566466293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a18ca67c2770b98f36dbfd802595a95.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3 . 函数
的定义域为R,对于任意实数x,y,都有
,则
的值不可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82bde53de43dda74249725823c0e6610.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
A.-2 | B.![]() | C.1 | D.2 |
您最近一年使用:0次
2024高三·全国·专题练习
4 . 设
,定义符号函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c94c25ef8460a528557303b7e61021.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 函数
的值域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e893ae67970df14931607da14b840916.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 如图所示,动点
在边长为1的正方形
的边上沿
运动,
表示动点
由A点出发所经过的路程,
表示
的面积,则函数
的大致图像是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/17/6cbfd0ae-2eef-4662-a3db-57f584a68866.png?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4853b4705dee3de86e18a346ee3ae853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fbd6b9f85c086ac95562fe45e8d969.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/17/6cbfd0ae-2eef-4662-a3db-57f584a68866.png?resizew=145)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 函数
的定义域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e42cee48786474461010d6334f3058.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024高三下·全国·专题练习
8 . 已知
是定义在
上的函数,以下说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
名校
9 . 小明骑车上学,开始时匀速行驶,中途因车流量大而减速行驶,后为了赶时间加速行驶,与以上事件吻合得最好的图象是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 设函数
的定义域为
,且
,当
时,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17415f5a13a802b355176c240005b127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7831ccd5afb78d6b1c431395833705ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5a94417d0d62715ea4067280d733df.png)
A.![]() | B.![]() | C.1 | D.![]() |
您最近一年使用:0次