1 . 若常数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2ca69ab3523bad538e6b18f1d11837.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b70df6297771851ff2167c52e24ed05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2ca69ab3523bad538e6b18f1d11837.png)
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2 . 《庄子·杂篇·天下第三十三》里的一段说:“一尺之锤,日取其半,万世不竭”,其数学含义意味着![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77597ad2d7cd1390fbe5b5c3c541155.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77597ad2d7cd1390fbe5b5c3c541155.png)
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11-12高一下·贵州贵阳·期中
3 . 等比数列
中,
,
,
分别是下表第一、二、三行中的某一个数,且
,
,
中的任何两个数不在下表的同一列.
(1)求数列
的通项公式;
(2)若数列
满足:
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
第一列 | 第二列 | 第三列 | |
第一行 | 3 | 2 | 10 |
第二行 | 6 | 4 | 14 |
第三行 | 9 | 8 | 18 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11042d71c45ac2a5778924138d217730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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10-11高三·贵州·阶段练习
4 . 已知数列
满足
,
(
且
)
(Ⅰ)证明数列
是常数列;
(Ⅱ)求数列
的通项公式;
(Ⅲ)当
时,求数列
的前
项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f74eeedea1187737d3ab1b0ae5a8257d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b093179acd11cf139755af6d02d68966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f874a8de8edb3794b14000fdce563baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ba2b0f9ac523f171dd24956f41bd4e.png)
(Ⅰ)证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67485ed4440f34177123e03345273440.png)
(Ⅱ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
(Ⅲ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca670941b6527ff8eadec74ada010e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2011·贵州遵义·一模
5 . 已知
的二项展开式中的第5项的值等于5,数列
的前n项为
,则
._______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03ee1bb4c0ed387afac43525ff2da6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b1d3c668e37648cbe3f50fcf32ff65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6eb2fcf76cd58f6573a059ab1ab48b4.png)
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12-13高二上·贵州遵义·期末
6 . 已知
,且
组成等差数列(
为正偶数),又
.
(1)求数列
的通项
;
(2)求
的值;
(3) 比较
的值与
的大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/befcb883944aca091535f23f8431985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1360106f4c2df673abb3b7b6ba05bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7298606aa4f26e62f6caee022634b38f.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fef5f357f94e1e162cc47a99f9ab1e.png)
(3) 比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fef5f357f94e1e162cc47a99f9ab1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
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7 . 设数列
的前
项和为
,点
均在函数
的图象上.
(1)求数列
的通项公式;
(2)若
为等比数列,且
,求数列
的前
项和
.
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bff1b77d19ef635d39c5a89dec5fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85fe32900e2ee3fed63ade6392b09295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5344eadd4711db34e3f935aedd5fb270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2016-12-04更新
|
402次组卷
|
2卷引用:贵州黔东南州2017届高三高考第一次模拟考试文科数学试题
名校
8 . 等比数列
的前
项和为
,则
的值为( )
![](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/4002a3c5082b6fe731ca476f09744e7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
A.1或-1 | B.![]() ![]() | C.1或![]() | D.-1或![]() |
您最近一年使用:0次