1 . 在数列
与
中,
,数列
的前n项和
满足
,
为
与
的等比中项,
.
(Ⅰ)求
,
的值;
(Ⅱ)求数列
与
的通项公式;
(Ⅲ)设
,证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f34544d4d33bc8ae6172e5a5072448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffebdf9f4dd3029f6870071ef81ce1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604fbee0544dc18d9b15d5243dad9f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95931effbd59c43e8ed1ea09962b84f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
(Ⅱ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
(Ⅲ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f00f0bc4131d238f8a3f422b78c00c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3dcf0629fe9e07590fe272eecadf0ee.png)
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2019-06-03更新
|
1283次组卷
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4卷引用:天津市实验中学2019届高三热身数学(理)试题
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