名校
解题方法
1 . 有下列五个命题:
①函数
是偶函数;
②函数
的值域为
;
③已知集合
,
,若
,则a的取值集合为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d3b7b4642bbff9de52574b5759d95b.png)
④关于x的一元二次方程
的一个根大于1,一个根小于1,则实数m的取值范围是
;
⑤若
的定义域为R,且在
上是增函数,
,且
,则
与
的大小关系是
.
你认为正确命题的序号为:______ .
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd5cfa1d05b980bacc076827528dc7d.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3ac9347e120e918e4cfac7c231028d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c522f42745129cab20ae11ca3de72e.png)
③已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9e1e23d799232a161911aa6ec19d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b771cacb3d98e1ccf4ce62c62edcef78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d3b7b4642bbff9de52574b5759d95b.png)
④关于x的一元二次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6da4b05ca0a5bc6b5a062d628dc80e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8d5505480b11358efcc87cda54627e7.png)
⑤若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2372f424431ce7b547a66b7d61d75421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6027c04510bd896d5106eab149f31b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f046b095637bb51f5bfc291ead8826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808026f1c80fda41d00c093ec2b6b231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1d0d29b98414f79ee9d7b728fbde49.png)
你认为正确命题的序号为:
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