名校
解题方法
1 . 高斯是德国著名数学家,近代数学奠基者之一,享有“数学王子”称号,他和阿基米德、牛顿并列为世界三大数学家,用其名字命名的“高斯函数”为:设
,用
表示不超过
的最大整数,则
称为高斯函数,例如
,
. 已知函数
,函数
,则下列4个命题中,其中正确结论的选项是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1dffa925101e9e19720ee7295133d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be209b4634a4169d727f9fac198acce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbc6c3245906550c7641ce0471ac202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c583c96c958b9653dd9b66f7dbd7079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9bcf0effd771e30ab3399d2fcd9fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bed8d403d5e4e232c8ac65ed87af5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259118296ced0cf932f15d08c3feee77.png)
A.函数 ![]() |
B.函数 ![]() ![]() |
C.函数 ![]() ![]() |
D.方程 ![]() |
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名校
2 . 已知函数
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea28d727a773f3265bc66aff642713a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039f9392112593405d4c0f1bea7d31f3.png)
A.若![]() ![]() |
B.当![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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3 . 已知正实数
,
满足
,则下列不等式可能成立的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b16ceae23938d0d9b77f31f54d9ea1c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024·全国·模拟预测
4 . 已知
则方程
可能有( )个解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ce124fd5d9db9e0722ed1670efe4da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a5c5b2fcb512ee0bc8a9997bde1e47.png)
A.3 | B.4 | C.5 | D.6 |
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名校
解题方法
5 . 已知函数的定义域为
,
,且当
时,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322eb46d949b9580bcc057d146b7fc58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71bb7883ea87e6275472dbe14ee62357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93bec8b1d8c2a5bd5095cb5a42719175.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.若对任意的![]() ![]() ![]() ![]() |
D.若![]() ![]() |
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名校
6 . 已知函数
的定义域为
,且
,都有
,
,
,
,当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a976d91358362fa49d6da8021fd47e2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6b863364b72463ff435f44535abde4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8479c434c830cdb71e2b2ddabd197a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86334a5323b66e5bbb912eba81e52b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32358560bd0832ecc0e7257203e1be15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77538bd3aba1864f5eac30dae75b36d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953bbf77a2c58b4ba69ca9ad11e3a7e.png)
A.函数![]() ![]() |
B.![]() |
C.![]() |
D.函数![]() ![]() |
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2024-04-15更新
|
1360次组卷
|
3卷引用:河北省沧州市盐山中学等校2024届高三下学期一模联考数学试题
名校
7 . 函数
是定义域为
的奇函数,且它的最小正周期是2,已知
.下列四个判断中,正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8b7857a3cbd799430d2709f6e4cb3.png)
A.函数![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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解题方法
8 . 已知函数
是定义在
上的偶函数,当
时,
则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62efb99971badf1c07858a6eb3828edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff3f6e7c4214fd1d24c58e2c3bdb834.png)
A.当![]() ![]() |
B.![]() |
C.存在![]() ![]() |
D.函数![]() ![]() |
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2024-03-21更新
|
163次组卷
|
2卷引用:海南省海口市海南观澜湖双优实验学校2023-2024学年高一上学期教学质量调研数学试卷
9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88a1d706f453ebe641928d539a55a7b.png)
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88a1d706f453ebe641928d539a55a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d75d042a2fd6581382fef773402bd78.png)
A.![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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10 . 已知函数
若关于
的方程
有3个实数解![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/586229152055b850bb12078f44aa4375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915e28a6131cf12ea62c8f469d4fa5f2.png)
A.![]() |
B.![]() |
C.![]() |
D.关于![]() ![]() |
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