名校
解题方法
1 . 在等比数列
中,
,
为该数列的前
项和,
为数列
的前
项和,且
,则实数
的值是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76eedb8b626a77f8c26d2995bb37067c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362832fa3d3c13c1eafd565349d66dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e67df7ba7033fe92780c2a5c1c7852d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024-04-02更新
|
206次组卷
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2卷引用:广东省两阳中学2023-2024学年高二下学期月考一数学试题
2 . 已知数列
是一个等比数列,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a080c94bf1ffea8d5af10f9688978fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe378806fd076834c67e3d6959384909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
您最近一年使用:0次
3 . 在等比数列
中,
,
是方程
的两根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22480b5a27bd6c1d35ca865c2e8000c1.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e35eeaabd951fb09b2926807da3685b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e857c16ea6f388ee278435061a56af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22480b5a27bd6c1d35ca865c2e8000c1.png)
您最近一年使用:0次
4 . 已知各项均为正数的等比数列
满足
,则
的公比为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d28dede19e2191106a3f990ad7e340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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名校
5 . 首项为1的无穷等比数列
,满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cee45170ef38fc988fd04d1e223d94.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5914ceb5b856787828dd9e4055075507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cee45170ef38fc988fd04d1e223d94.png)
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2024-01-19更新
|
215次组卷
|
2卷引用:广东省东莞市东华高级中学2024届高三上学期第二次调研数学试题
名校
解题方法
6 . 已知数列
(
,
)为等比数列,且
,则
的公比为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e167b43045b3297248e334c41c621b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4613271f782a90ab580131d09d03d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6a83fadb81bbf06e60890dd758e630.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2023-06-11更新
|
410次组卷
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3卷引用:广东省信宜市某校2023-2024学年高二下学期开学考试数学试题
名校
7 . 已知数列
为等比数列,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfc875ca919921e8f63a6fca648561b.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab20db3fc12557a10814d4e1e818220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfc875ca919921e8f63a6fca648561b.png)
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2023-05-16更新
|
316次组卷
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3卷引用:广东省汕头市潮阳区2023-2024学年高二上学期期末数学试题
(已下线)广东省汕头市潮阳区2023-2024学年高二上学期期末数学试题广东省汕头市潮阳区2023-2024学年高二上学期期末教学质量监测数学试题辽宁省六校协作体2022-2023学年高二下学期期中数学试题
名校
解题方法
8 . 记
为等比数列
的前
项和.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a8ca15ccc1ac4ecbe12c13d9bcfe65.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.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/15f63d85bcd347d1fe59591a12013d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a8ca15ccc1ac4ecbe12c13d9bcfe65.png)
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2023-04-27更新
|
1589次组卷
|
5卷引用:广东省华南师范大学附属中学2023-2024学年高二下学期期中考试数学试题
名校
解题方法
9 . 有一座七层塔,若每层所点灯的盏数都是上面一层的两倍,一共点381盏,则底层所点灯的盏数是___________ .
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2023-03-26更新
|
435次组卷
|
4卷引用:广东省珠海市香樟中学2023-2024学年高二下学期第一次诊断性监测数学试卷
名校
10 . 已知等比数列
的前n项积为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfef7b902b4f2983179980a00bdbcbc.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d73f860943bab9015f6b8054e7b32a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfef7b902b4f2983179980a00bdbcbc.png)
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2022-05-15更新
|
680次组卷
|
4卷引用:广东省佛山市高明区第一中学2023-2024学年高三1月调研考试数学试题