1 . 若矩形
满足
,则称这样的矩形为黄金矩形.现有如图1所示的黄金矩形卡片
,已知
,
,
是
的中点,
,
,且
,沿
,
剪开.用3张这样剪开的卡片,两两垂直地交叉拼接,得到如图2所示的几何模型.若连结这个几何模型的各个顶点,便得到一个正______ 面体;若
,则该正多面体的表面积为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939670cbfebb6bf5307a4eadacd67c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d6e1e893190c067ca1ae6fef8a089e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26b00267f95b3317244d9871a61dcb92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6cc3789c0e9b7d1226aa0de3327599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bced1780d1fd068d0242fa11c18ed5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53cc9caac0b40017cde9eb0d610e62aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/ece5fa59-801e-4e1b-bc59-4489812645dd.png?resizew=259)
您最近一年使用:0次
2021-05-07更新
|
601次组卷
|
4卷引用:江苏省宿迁市2021届高三下学期第三次调研考试数学试题
名校
2 . 已知
,其中
是给定的正整数,且
,
为常数,设
(
中的最小值).
(1)求
、
的值;
(2)求
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5902ef137e8d526273b98a38fc2f177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212c82587ab19801f2646fd69abc79e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d3bd3e2e82d954802b80856d707095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43fb5b6973a30ce2bc7a608e43183a42.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee50575e3ebd56c4f46dd0bbf8e55d3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
您最近一年使用:0次
名校
3 . 设等差数列
的公差
,数列
的前
项和为
,满足
,且
,
.若实数
,则称
具有性质
.
(1)请判断
、
是否具有性质
,并说明理由;
(2)设
为数列
的前
项和,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4acfdca1f3bb06d2b56b57339eabef5a.png)
恒成立.求证:对任意的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
,实数
都不具有性质
;
(3)设
是数列
的前
项和,若对任意的
,
都具有性质
,求所有满足条件的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70792383ff1c955255afe70b7c9c90c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.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/4f86f99671fe8a18caba3f5393042e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac657ea5bbf4b237a30e4074c76cc81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4be36d1bd6c5e554e54043447e49ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf05bf7b968f26fad1123e539680d786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf99487d7860d017c0747ff966edfd77.png)
(1)请判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63be95225b55df87368caaf221adf29e.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47c675d76d2393793dadd27ecd3c737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4acfdca1f3bb06d2b56b57339eabef5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d307ec71820b6536453fbdb5069da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60c9f92ef6d5baa479960bfaf2a9c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf99487d7860d017c0747ff966edfd77.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87bd7d18f67e90a7c37fad4252e43c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8a4d244655d284fc0cf9f092aaf2e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87841b7c069b5146a97c5b6d422e7fa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf99487d7860d017c0747ff966edfd77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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