名校
1 . 给出下列命题:
①若角
的终边过点
(
),则
;
②若
,
是第一象限角,且
,则
;
③函数
的图象关于点
对称;
④函数
在区间
内是增函数;
⑤若函数
是奇函数,那么
的最小值为
.
其中正确的命题的序号是_____ .
①若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e0a22f69df9d887882e3207ea62cb17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a892dbcef7934d97016bb190d94e0bc3.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c61cfbfd3bf888856b7dc9b2a84c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116a4f1c8b51d1993e6d7c054e2ed5d7.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638823e37a77f239da6e89c894234a20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b2b096238bd6eac8cd1ab2c4348fb9.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3aee4d5b0a4cb018a5c9c1294b24bdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee177fce40c0475d96f75cd1e5c752d.png)
⑤若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b1ade55163ee4734ffa55bd284735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d061d17bbc13e2d61a0c4aee0cb9ced3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
其中正确的命题的序号是
您最近一年使用:0次
解题方法
2 . 已知关于
的函数
的最大值为
,最小值为
,若
,则实数
的值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88dbb6f1ca06fc8db584c4b995a1b906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7dbc702617c765a573961953cc0901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次