已知数列
满足
,
,其中
.记
,
.
(1)求证:数列
是等比数列;
(2)记
,试比较
与
的大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f4e1236d7dc0366d9523d0cbb426be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4577dbaf59b5b3f089fae0b2b11372ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e36bff57bcfa86432b340e25e51d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5cd20353774b413bacba99183257c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c42195a0a5cf6a8eaf095a72d31991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/067fd50657b66a27d3c5883e9593689b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db25f99c8f3c874a5d0f8cdac71338de.png)
更新时间:2020-05-28 06:47:42
|
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【推荐2】已知数列{an}满足
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解答题-问答题
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适中
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解答题-问答题
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