1 . 设
,
是函数
的图象上任意两点,若
为
,
的中点,且
的横坐标为
.
(1)求
;
(2)若
,
,求
;
(3)已知数列
的通项公式
(
,
),数列
的前
项和为
,若不等式
对任意
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c69e1e952de60cf04be3ae102182395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0d43bb37391bff9a26ba92c093d0ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d649e8653697a1e518497bf6703ec6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9c827e46d1a395fafbf15cdd6c6c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa5694373bd78b1ca2180f831bf1c8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2252dec4cf2fd59caff617269567806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9c827e46d1a395fafbf15cdd6c6c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d6e75677951ef1388f76aee5a779149.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9697ebb284fc80f2825429ab2b3439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7035ce63c77b441f544fed0b4975d3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bcc2622c4ea3ec988216da0988bedee.png)
(3)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a2d1d8e45c863791c1e39b37eb0746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7705e3be4b0bc5f0f2f448409fc102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7035ce63c77b441f544fed0b4975d3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96577f4bd5edf094f88ff186c48e4b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7035ce63c77b441f544fed0b4975d3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2016-12-03更新
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1326次组卷
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2卷引用:2014-2015学年四川省达州市高一下学期期末考试文科数学试卷