1 . 已知等比数列
的前
项和为
,若
成等差数列,且
,若
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.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/25d684f34307f6005ff4f8451e56bb20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a47d65e23b4977b3ea071f8052e1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86893b1e4a61e4f4d677bc217249f3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2 . 已知函数
的定义域为实数集
,及整数
、
;
(1)若函数
,证明
;
(2)若
,且
(其中
为正的常数),试证明:函数
为周期函数;
(3)若
,且当
时,
,记
,求使得
小于1000都成立的最大整数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd51682d8c1d1e3026491f80fe42a62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5902f82f85151a94fe0969316c425bc8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e37bbc29ff4f1ac790aedbc574e862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfca1a1d2e308d840e267d9018f88f01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606c24b88c4453aa408f952c457eac6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5850426712b921e7c18b9a9a43712cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69fff4254c13c9170673d8f1b6e1a022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9afb7f58145b5dd42a239ede573720c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d595196ae6d52febfe4b499838e35b4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2020-02-01更新
|
235次组卷
|
2卷引用:上海市八校2016届高三下学期3月联考(理)数学试题
名校
3 . 将数列
中的所有项按第一行排3项,以下每一行比上一行多一项的规则排成如下数表:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20488a7619e4a50625983b83e38575df.png)
……
记表中的第一列数
,
,
,…,构成数列
.
(1)设
,求m的值;
(2)若
,对于任何
,都有
,且
.求数列
的通项公式.
(3)对于(2)中的数列
,若上表中每一行的数按从左到右的顺序均构成公比为q(
)的等比数列,且
,求上表中第k(
)行所有项的和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20488a7619e4a50625983b83e38575df.png)
……
记表中的第一列数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7da2f386b78cdf6489efaa2f5820d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed40f06a45869a06a3dc33a55f096ca7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0dd3fb6af23def773e1b0032a4f3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e147de39d53b9d4b00afa46672ef980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(3)对于(2)中的数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71acdb04454c77e1e25ad4f336cccfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194480253da4a3747297bce4d4a63f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b6d151d3f864bae873987f6db9327a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8bfd47b7c68564110c720e9246a02ff.png)
您最近一年使用:0次
名校
4 . 数列
的首项为
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd54330be1c08e8872ecaa8f74d4fb0.png)
,记
为数列
前n项和,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd2642dda2eba9b1e6db5c65a24da0a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd54330be1c08e8872ecaa8f74d4fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f8ce2ce22be8573102161e2500efd7.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/5cd2642dda2eba9b1e6db5c65a24da0a.png)
您最近一年使用:0次
2020-01-30更新
|
143次组卷
|
2卷引用:上海市实验学校2017届高三上学期第三次月考数学试题
5 . 若数列
的通项公式
前
项和为
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2fcfa94017394dbe025222171f033df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次
6 . 等比数列
前n项和
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766d2a232037e8232f09a445b2fa6229.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b53b6f7bc1f853741bd9fb5be71c78a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766d2a232037e8232f09a445b2fa6229.png)
您最近一年使用:0次
7 . 某企业第一年年初有资金2000万元,将其投入生产,到当年年底资金增长了50%,预计以后每年资金年增长率与第一年的相同,公司要求企业从第一年开始,每年年底上缴资金
万元,并将剩下的资金全部投入下一年生产,设第
年年底企业上缴资金后剩余资金为
万元.
(1)用
表示
,
,并写出
与
的关系式;
(2)若公司希望经过5年使企业的剩余资金为4000万元,试确定企业每年上缴资金
的值.(精确到0.01)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.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/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)若公司希望经过5年使企业的剩余资金为4000万元,试确定企业每年上缴资金
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
您最近一年使用:0次
名校
8 . 已知等比数列
的首项
,数列
前
项和记为
.
(1) 若
,求等比数列
的公比
;
(2) 在(1)的条件下证明:
;
(3) 数列
前
项积记为
,在(1)的条件下判断
与
的大小,并求
为何值时,
取得最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e03cef5974ebfe9072f704c76f7f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1) 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafa9c1774dfbd599d5871ae4efb585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(2) 在(1)的条件下证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63128fc7a6b65457980de79855180df6.png)
(3) 数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/49c991692d281ea8c2fda692113809f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f99eb2934ccfb01ea9041053350190f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
9 . 数列
为等比数列,
是等比数列
的前
项和,已知
,则
,则
=_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.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/d7c33daee1f0d2582651f1cb2632063a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53b4b54f6be7839de8baff7af19a4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27182444d3da4003680f07ec299087c.png)
您最近一年使用:0次
名校
10 . 等比数列
前
项和为
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b8d9ff82ab59e62f9ac36298f58ab39.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/6b114d2973be19856e8432184fe8579a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b8d9ff82ab59e62f9ac36298f58ab39.png)
您最近一年使用:0次
2020-01-09更新
|
92次组卷
|
2卷引用:上海市十三校2016届高三上学期12月联考数学试题