已知函数
(其中
)的最小正周期为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e601cc0ad18f38505ccd1f2c169761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
更新时间:2020-03-13 16:10:12
|
【知识点】 由余弦(型)函数的周期性求值解读
相似题推荐
填空题-单空题
|
较易
(0.85)
【推荐1】已知函数
的最小正周期为
,将函数
的图象上的所有点向右平移
个单位长度,再将所得的图象上各点的横坐标缩短为原来的
,纵坐标不变,得到
的图象,则
在
上的值域为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd10505b3d2d73b964b65cfdc4b26a21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070e974e5a17b8c1531621bfa2a2e6aa.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
【推荐2】有下列四个命题:
①若
均为第一象限角,且
,则
;
②若函数
的最小正周期为
,则
;
③函数
是奇函数;
④函数
在
上是增函数;
其中正确命题的序号为____________
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c61cfbfd3bf888856b7dc9b2a84c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116a4f1c8b51d1993e6d7c054e2ed5d7.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8d74a20106e4ed606cbe4b3521651c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9609625b502348556ff8ba32deac8caa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150c96b835d011c169c3ffdbc314b5a6.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d80d70fdab1a1d7c98ae24821c3abe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
其中正确命题的序号为
您最近一年使用:0次