解题方法
1 . 声音是由于物体的振动产生的能引起听觉的波,我们听到的声音多为复合音.若一个复合音的数学模型是函数
,给出下列四个结论:
①
的一个周期为
;
②
的图象关于原点对称;
③
的最大值为
;
④
在区间
上有
个零点.
其中所有正确结论的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c40150a4c49bb8fd623d9ca9a2e925d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e2d7c958e99bcd9d7f251c19ee3544.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bccd6a6e85bdf500218a3e75b31f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
其中所有正确结论的序号为
您最近一年使用:0次
2 . 在我们学习过的函数中有很多函数具有美好的性质.例如奇函数
满足:在其定义域D内,对任意的
.总有
现给出如下10个函数:
①
,②
,③
,④
,⑤
,⑥
,⑦
,⑧
,⑨
表示不超过
的最大整数,⑩
.
则上述函数中,对其定义域中的任意实数x,y,满足如下关系式的序号为(在横线上填上相应的函数序号,无需证明.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62826e5114ece563439421509970dc12.png)
______________
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34e9794d31b207750914222a39d9036.png)
__________________
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49074b2fc18e7edb1b3b6b4e6f9737c9.png)
_____________
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9dbe6c97e2ffd3d4dcd75d138fd95f6.png)
__________
(5)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25bea6d14c16f7c06e4e028f36131360.png)
_____________
(6)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac47c1b6230edf33b5a1c76b75025de.png)
______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34e9794d31b207750914222a39d9036.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28638f8c054a7bb4d9b46fde330bc76f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3cc66b811ad2395efe04d93b61c711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b74c4e12f40e93d56562325df2df72fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cc82c265dd9669c5ef3e32ba17471f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f01e763504cd81a543f3be8dea5395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362bfce584209628bc4ad3f23e3d7b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3fd09aa6bd2c73f713869a28e38e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b366c57f5ef99a1a95ea5fc4a7fb30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2eb4f851847e2bd84e31ba1cd1fc08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a51218585998e787619ecaa73db0e40.png)
则上述函数中,对其定义域中的任意实数x,y,满足如下关系式的序号为(在横线上填上相应的函数序号,无需证明.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62826e5114ece563439421509970dc12.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34e9794d31b207750914222a39d9036.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49074b2fc18e7edb1b3b6b4e6f9737c9.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9dbe6c97e2ffd3d4dcd75d138fd95f6.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25bea6d14c16f7c06e4e028f36131360.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac47c1b6230edf33b5a1c76b75025de.png)
您最近一年使用:0次
20-21高一下·江苏南通·开学考试
3 . 给出下列命题:
①若函数
的定义域为
,则函数
的定义域为
;
②函数
在定义域内单调递增;
③若定义在
上的函数
满足
,则
是以2为周期的函数;
④设常数
,函数
若方程
有三个不相等的实数根
,
,
,且
,则
的值域为
.
其中正确命题的序号为_____ .
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1924f683f9c883587b48ccddd8f00f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82dee78784d1b1841d8ed52c47a8163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0fa5d8301f4b34a10f98b5929667357.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457eb5e0000350b102d387a80cf3476b.png)
③若定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e13b0ca1f02740b1d1b41e469b966e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
④设常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02cf2238baf71c8a83e056c3a315e985.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/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f097865549154b7196a695ce297b29a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec11fcbacb03a3a801e524952e67b308.png)
其中正确命题的序号为
您最近一年使用:0次
名校
4 . 设
是定义在R上的奇函数,在
上单调递减,且
,给出下列四个结论:
①
;②
是以2为周期的函数;
③
在
上单调递减;④
为奇函数.
其中正确命题序号为____________________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034b1f5ba40bb5f9fefea188ef90a0e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28266d15eb3ce27aa1140780c7255171.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d22f794d1a79ad925c7b39be608451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f4c4985f8a820372f1349f21f8dc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7479276dbd621fa9b35751c2f6c17830.png)
其中正确命题序号为
您最近一年使用:0次
2018-07-07更新
|
878次组卷
|
2卷引用:江西省遂川中学2022-2023学年高一上学期期末考试数学试题
名校
解题方法
5 . 如图放置的边长为2的正方形
沿x轴滚动,记滚动过程中顶点A的横、纵坐标分别为x和y,且y是x在映射f作用下的象,则下列说法中;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/b997efac-12c6-462c-9dd8-d25a00840e7e.png?resizew=169)
①映射f的值域是
;②映射f是函数,且是偶函数;③映射f是函数,且周期是
;④映射f的单增区间为
,其中正确说法的序号是___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/14/b997efac-12c6-462c-9dd8-d25a00840e7e.png?resizew=169)
①映射f的值域是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5432187d1c042787433b7633292d00fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f5f0f7fde5756fc03fc39d1058eb3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37ae4323e383111f355247cb580c114.png)
您最近一年使用:0次
名校
6 . 有下面两个命题:
①若
是周期函数,则
是周期函数;
②若
是周期函数,则
是周期函数,
则下列说法中正确的是( ).
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add1a06062f9196e8e83452269db2316.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add1a06062f9196e8e83452269db2316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
则下列说法中正确的是( ).
A.①②都正确 | B.①正确②错误 | C.①错误②正确 | D.①②都错误 |
您最近一年使用:0次
2022-04-22更新
|
463次组卷
|
3卷引用:上海市复旦大学附属中学2021-2022学年高一下学期线上期中数学试题