2020高三·浙江·专题练习
名校
1 . 已知数列
满足
,
,
,记数列
的前
项和为
,则对任意
,则①数列
单调递增;②
;③
;④
.上述四个结论中正确的是______ .(填写相应的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b705494275d3b95c0c1dfe3eaece3456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675b69f8ebe6f5eefc1f35656ebebc8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fc82353331abee0828dee9b38c08f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.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/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b172a5c73a4cf34c3f5964f3c488f89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29cb8281971fbc83ba253124037677d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a82fdbc0527dd3b0fbfc129abe9694.png)
您最近一年使用:0次
2020-01-04更新
|
552次组卷
|
3卷引用:【新东方】杭州高三数学试卷262
名校
解题方法
2 . 已知函数
,其中
,
.
(1)当
时,
的零点为______ ;(将结果直接填写在横线上)
(2)当
时,如果存在
,使得
,试求
的取值范围;
(3)如果对于任意
,都有
成立,试求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b169c3fef0685cc75cfe9e52285c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e8d7d9c43b12ef51f366217af2d5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799b324b514d6044672c133d8fef2dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133cb4bfa780967fce1ef6181f2cf545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)如果对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d81410c357d67b72895494ee50ce592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
您最近一年使用:0次