名校
1 . 已知函数
.
(1)若
在
上不单调,求a的取值范围;
(2)当
时,记
的两个零点是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
①求a的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c565eed01da8f81dcb33909bd65d16f1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
①求a的取值范围;
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b6f58e3f5d77e2acad79e7656688c6.png)
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2020-07-04更新
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2卷引用:浙江省宁波市宁海中学2019-2020学年高二(创新班)下学期高考模拟数学试题
名校
解题方法
2 . 若数列
满足
,
,记数列
的前n项和是
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fab51121848ce166035ceab6f4e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9ed1d51c6126440c12cae718afec78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.若数列![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2020-07-04更新
|
892次组卷
|
2卷引用:浙江省宁波市宁海中学2019-2020学年高二(创新班)下学期高考模拟数学试题