名校
解题方法
1 . 已知函数
,且对
,
,都有
.
(1)求
的表达式;
(2)已知关于x的不等式
的解集为A,若
,求实数a的取值范围;
(3)已知数列
中,
,
,记
,且数列
的前n项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282e825c14110833c45ac9db52e5f42c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6593a700bf3e89107556454666b787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f370a1d4dd341e5ab1774a66c66c1204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845ebe200c96e5259501ad8978ffae5f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6b1cfb0b2755e419ed28cbb4d0ece4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6397b02d758108ce97907d2efcac1d63.png)
(3)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2bc260323ce13981f2ee3fdfb52d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08ed7d51b6175cae1cbc40e8878e3e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29877f249cacfa421cc082410a73e69f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d35a29be4e48c56ee056c4b9cad8110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5737f1f9cad2471f3ca53241b25a1eb9.png)
您最近一年使用:0次
2 . 若关于
的不等式
的解集是空集,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70155a69eb854f4f70abce9729fde238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-07-01更新
|
515次组卷
|
5卷引用:河北省石家庄市第二中学2016-2017学年高二下学期期末考试数学(理)试题