名校
解题方法
1 . 已知函数
.
(1)讨论
的单调性;
(2)若
对任意
恒成立,求实数
的取值范围(
为自然常数);
(3)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e9c23fb0ce2383af62bf8b0674d9ff.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a83e57d8240c325bb692f293f5cf4f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2b5ee1eabb64358a3d9db2349b6fce.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c07636ed9526df39978dfa75d4a35d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6957c74475ce7b08482971e37c242a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e9c23fb0ce2383af62bf8b0674d9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289304d0182c0234b74dcb8c8fb708da.png)
您最近一年使用:0次
名校
2 . 已知数列
满足
,
,
,记
,
分别是数列
,
的前
项和,证明:当
时,(1)
;(2)
;(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab335212fe8d8b99d3cf35c5db14c36c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7118a8dab6f8e5346ebc3788cea66e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1254070260067f8bf2fec39a7d0c8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/461213d375554bfe8641284dc283383f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c3b913993e1ae3ecca430abc73b43c.png)
您最近一年使用:0次
2017-02-08更新
|
1443次组卷
|
3卷引用:安徽省合肥市四校2019-2020学年高二上学期开学考试数学试题