已知符号
表示不超过x的最大整数,若函数
(
),给出下列四个结论:①当
时,
;②
为偶函数;③
在
单调递减;④若方程
有且仅有3个根,则a的取值范围是
.其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e4fb560b519c185c6060bd6ec04835.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbb1af40cb43a243938534580b84559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f262e441b9b2e5deef6d5e7b9b503c.png)
23-24高一上·北京东城·期末 查看更多[2]
更新时间:2024-01-19 23:52:34
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相似题推荐
填空题-单空题
|
适中
(0.65)
名校
【推荐1】设函数
,给出下列四个命题:
①
时,
是奇函数;
②
时,方程
只有一个实根;
③
的图象关于
对称;
④方程
至多两个实根.
其中正确的命题是_________ .(填序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b738efdc33def0c7e1a82ef896f0f2.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a783088120d67cc98936081e80fb7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ebea6845e95b5764231a06c407d4582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ef9a90c2b57dd9b1cf673f554113a3.png)
④方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
其中正确的命题是
您最近一年使用:0次
填空题-单空题
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适中
(0.65)
解题方法
【推荐2】“
”表示不超过实数
的最大的整数,如
,又记
,已知函数
,给出以下命题:①
的值域为
;②
在区间
上单调递减;③
的图象关于点
中心对称;④函数
为偶函数.
其中所有正确命题的序号是____________ .(将所有正确命题序号填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc51e97939a8966daa015535a801561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ccd3e1a186f5a2623f20a0fe3af64f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f2754b3b1dad0794ec35a1771e1453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ab33e7bee6752179afc504e6d64f90.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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01c0fc881ee40b9ce4aea46fa601629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb642fa455980c8215b929439c3c38ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09a2b7c019dae83e027830b82b3ee8d.png)
其中所有正确命题的序号是
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐1】函数
,若方程
恰有3个不同的实数解,记为
,
,
,则
的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd1f16a3494e69093efc7f821f374e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35bacde908aec2c313978fc4309d82bc.png)
您最近一年使用:0次
填空题-单空题
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适中
(0.65)
【推荐2】设定义域为
的函数
,若关于
的方程
有
个不同的实数解,则m=______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b7d7be544055335f2dc66bb8eb8824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae4d7387c715ef9a347e03c3f8ac73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
您最近一年使用:0次
填空题-单空题
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(0.65)
名校
解题方法
【推荐1】已知函数
,在其图象上任取一点
都满足方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60055e8eadb99f9b16747014d08d71ab.png)
①函数
一定具有奇偶性;
②函数
在
是单调函数;
③
,使
;
④
,使![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3bd6a3809b8d928607447b0f332cd25.png)
以上说法正确的序号是__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbaa81036d750eb08c2f13f2f63e3d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60055e8eadb99f9b16747014d08d71ab.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f15113583ceb436b9de63c078c5a553a.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7dd9df29a7493a42a2b4816cdcd52a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9c1858df1b8f80ee08e6a601dd0fe9.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effcce2647dd45b70890369504332225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3bd6a3809b8d928607447b0f332cd25.png)
以上说法正确的序号是
您最近一年使用:0次
填空题-单空题
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适中
(0.65)
名校
【推荐2】如果函数
在定义域的某个子区间
上不存在反函数,则
的取值范围是_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83727523b97c3458a3af818a3c6d6df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4e07de3b6cc70460cd31a4f175e57b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
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(0.65)
解题方法
【推荐1】在直角坐标系
中,如果相异两点
,
都在函数
的图象上,那么称
,
为函数
的一对关于原点成中心对称的点(
,
与
,
为同一对)函数
的图象上有____________ 对关于原点成中心对称的点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8530bca5123179cfede86d03738495e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72bb519b9b62a94a937f762644675f65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d59fc6d788d905b23a789cbbd9ceb9e.png)
您最近一年使用:0次
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(0.65)
解题方法
【推荐2】已知函数
,若对任意
,都存在
,使得
成立,则称
是“拟奇函数”.下列函数中“拟奇函数”的个数是__________ .
①
;②
;③
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9298ea50c497b0ad0905c08d72565892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cd0fe883569bbe8070ef231b3596b60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e2db99a76587112ef98e3e6d343b60e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318a16f1950d06e5500c76d8f81a507f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3fd09aa6bd2c73f713869a28e38e30.png)
您最近一年使用:0次