1 . 已知数列
满足
恒成立.
(1)若
且
,当
成等差数列时,求
的值;
(2)若
且
,当
、
时,求
以及
的通项公式;
(3)若
,
,
,
,设
是
的前
项之和,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa01f03fb074bff35b35e07047d11b1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d3341c8891f212759022411da7e73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4711944aa361bd9f2ed566b24c6888ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33295766573f385623e5a5d4ad06987c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dcf678291067776ffae329502725316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17328211a08b1511c0eea17fb58ce12a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe7bdaaf8b0adf10bf2ef6c1255b1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a41d6a7c4e014c7fe77028cb8413b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1b4a3abe5719814ca6497520b1ba8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f422edb72f7e1d5529a5570feb77df.png)
您最近一年使用:0次
2 . 设函数
是公差为
的等差数列,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef408975cd662d380a56b53e6606303.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34c3abac7e5ec833a725b629c7b690d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c487fec20bd809e0baf5cb39afe8979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661eddfbfac1f57594dd1a49b64f4c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef408975cd662d380a56b53e6606303.png)
您最近一年使用:0次
2016-12-02更新
|
1361次组卷
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6卷引用:2013届上海市奉贤区高考一模理科数学试卷