1 . 若不等式
对任意的实数
恒成立,则实数
的取值范围是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c04d186a30b47ec8e2f635fc2303a42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
537次组卷
|
2卷引用:2014-2015学年湖南省益阳市箴言中学高二3月月考理科数学试卷
10-11高三·陕西·阶段练习
2 . 选做题:(A)(坐标系与参数方程)在极坐标系中,过圆
的圆心,且垂直于极轴的直线的极坐标方程为_______________ ;
(B)(不等式选讲)已知关于
的不等式
(
是常数)的解是非空集合,则
的取值范围_______________ ;
(C)(几何证明选讲)如图:若
,
,
与
交于点
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958154c60b96746f5e68f0d529029a12.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cda90ec15c07139032c7fed43bcc385.png)
(B)(不等式选讲)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fee910d935b6d841d8c783e10b680a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(C)(几何证明选讲)如图:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e4d19bf237a6fca67e0d01a9ddb726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f616b35f456fd8315f9bcd9fe4415b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b336e518ac4ff04c6c26e4b8a15844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0f73b3c63084d9c032802e01f9a168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958154c60b96746f5e68f0d529029a12.png)
![](https://img.xkw.com/dksih/QBM/2011/5/23/1570219586486272/1570219591729152/STEM/3fba0c8da4ba4023af55e68d44178770.png?resizew=234)
您最近一年使用:0次