解题方法
1 . 在
中,内角
所对的边分别为
,且
,有下列四个结论:
①
;
②
是钝角三角形;
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd44dadf874d7213471a3f4f825c176.png)
④
的最大内角是最小内角的2倍.
其中所有正确结论的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5803f6fc09e7ac82fe1b06f57c64c3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50dddd96130ec007785b8d138be8a12.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd44dadf874d7213471a3f4f825c176.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
其中所有正确结论的序号为
您最近一年使用:0次
解题方法
2 . 已知点
与点
在直线
的两侧,给出下列说法:
①
;
②当
时,
有最小值,无最大值;
③
;
④当
且
时,
的取值范围是
.
其中所有正确说法的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8530bca5123179cfede86d03738495e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53ea2ddc3bf3fc9b926af55d462a02b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b481ff501f2173c755b338d9b94ce02.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e377720fcc0e18ffa0b6e477bb0086.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6cc07106cfb74d20da736872d777149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbac6c9561350ac84cd903500fcf82d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8126b4b9450c410a0c0ee7dc170a1c5b.png)
其中所有正确说法的序号是
您最近一年使用:0次
2016-12-04更新
|
1138次组卷
|
3卷引用:2016届陕西西北工业大学附中高三二模数学(文)试卷