1 . 如图所示数阵,第
行共有
个数,第
行的第1个数为
,第2个数为
,第
个数为
.规定:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c97394c9634fde6e772872b54b6249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f195253d3a2bc6383233e3515903c5b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0991d363c974fad83457c6a78b0152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ce15fa76fda687b1c1fbdc2480c524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497e4a4975dd419a1c65724385950c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d34607bb95c84c3bd775c144255895f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
(1)试判断每一行的最后两个数的大小关系,并证明你的结论;
(2)求证:每一行的所在数之和等于下一行的最后一个数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c15166e2227c8c8582bc17f818fa43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0623207595425920f16e76a7f8f268b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29a285201fd7e0ad70fa7431cb89a79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0749c4129afc0c704155f522290b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8715a3f984d2627afd7c40c61347b7cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5222268dda9dcb9b660f3cbedbb37757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f1e3925bda80e8223bf7e431585847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b344ab26012e4cc663266f04dd700cbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c97394c9634fde6e772872b54b6249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ce266899f72edea3187f4857b802ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d3bec9b8bdeca73764d9d2eb2c0a15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f195253d3a2bc6383233e3515903c5b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89299ff7b560424509825ce7c690c5be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcad334979e1fa0bef47d84c3c3c101a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fc7959cf1daf71f15861bc4704b111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0991d363c974fad83457c6a78b0152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db1e5ed0e2b01da100e896189c6312d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ee0101530cdc106c05caca4b7014ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c68792cc182e16074dfeaa1bbc7e166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d405be4f523f33ffc67f0d67c129cb7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ce15fa76fda687b1c1fbdc2480c524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9851d400de384cb46bbefdbfc8cdd3cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f159ced7d6594cc3d4f7a88fd9bc4cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/332ab3261e4e33b0948263ba058dc147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08d450cef132b9dec887ecd711de4603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a71f2064dc04af9382d1ef31feb0d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497e4a4975dd419a1c65724385950c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785606cbba01206e9d91cb3e6d4d2ab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40e77f739724cbfb3bdfd17ba44e238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df9830c93a2b4e7350544ffd662b82d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6585c61fd9ef5eaa86493b7c65ef581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace8be106f1402565ea778f0818bda9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb5c42bd7166ff6486b3b69ba1e1d64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d34607bb95c84c3bd775c144255895f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07096af3b99fd1cb11c31f19a2c6408e.png)
(1)试判断每一行的最后两个数的大小关系,并证明你的结论;
(2)求证:每一行的所在数之和等于下一行的最后一个数;
您最近一年使用:0次
2 . 如图所示数阵,第
行共有
个数,第m行的第1个数为
,第2个数为
,第
个数为
,规定:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96a1efc782c7cbbbd7ccd55ae6c06c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6442c68ee525e11e798702dcca3f4ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d80851ce143df1c3e1f7bd0bb28754d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8869622c406f60ca66f66cbf7e0f94cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c9cefa7564754d75af2709b98b559c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82123c3c62e343e06a547f58ea074bea.png)
…… … … … … …
(1)试判断每一行的最后两个数的大小关系,并证明你的结论;
(2)求证:每一行的所有数之和等于下一行的最后一个数;
(3)从第1行起,每一行最后一个数依次构成数列
,设数列
的前n项和为
是否存在正整数k,使得对任意正整数n,
恒成立?如存在,请求出k的最大值,如不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdd4f87e7e7e32d723d7e97d980db42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0623207595425920f16e76a7f8f268b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29a285201fd7e0ad70fa7431cb89a79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0749c4129afc0c704155f522290b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae0b861522b18be1753acc4474cbc9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5222268dda9dcb9b660f3cbedbb37757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f1e3925bda80e8223bf7e431585847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96a1efc782c7cbbbd7ccd55ae6c06c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6442c68ee525e11e798702dcca3f4ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d80851ce143df1c3e1f7bd0bb28754d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8869622c406f60ca66f66cbf7e0f94cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c9cefa7564754d75af2709b98b559c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82123c3c62e343e06a547f58ea074bea.png)
…… … … … … …
(1)试判断每一行的最后两个数的大小关系,并证明你的结论;
(2)求证:每一行的所有数之和等于下一行的最后一个数;
(3)从第1行起,每一行最后一个数依次构成数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](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/23e8660fb54ba32b037b392b75316087.png)
您最近一年使用:0次
名校
解题方法
3 . 设
,
.如果存在
使得
,那么就说
可被
整除(或
整除
),记做
且称
是
的倍数,
是
的约数(也可称为除数、因数).
不能被
整除就记做
.由整除的定义,不难得出整除的下面几条性质:①若
,
,则
;②
,
互质,若
,
,则
;③若
,则
,其中
.
(1)若数列
满足,
,其前
项和为
,证明:
;
(2)若
为奇数,求证:
能被
整除;
(3)对于整数
与
,
,求证:
可整除
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b72ea8ec0d9f8b1cfc4de834b8bfb608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87803b7cee18366b89d51799250df510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6705dba65746e1d4cac6a268b3c806ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020e12ff4f028aba3a205a95e650d72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79bda3d07c2fef4d6af4a13ade4c743e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020e12ff4f028aba3a205a95e650d72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4d6df2a57b7e5be32c05c10257ea6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91638bacbf4d15736d26713ba90e0fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91638bacbf4d15736d26713ba90e0fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4d6df2a57b7e5be32c05c10257ea6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0601879ae4ca9592246d135bfa48658c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383eb235f8e0ceda13367b16d29e0180.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/503618b9bfb53a06f0ec6a5e427dcdbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0da20edf2714109dcfded7e212ec44a.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12059d1dac926a235ccd40c3b61b1b6.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/ed9dbd8ed61db4f1c14f6b0e5f071200.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1e4de97f8490fddcff16afe8583266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(3)对于整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b96cdd9e003120b6102d927dbf53e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5009ce2d56180d31204f77c871fb375c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b326965628b5d967aafe9e696fdc07.png)
您最近一年使用:0次
2024-05-19更新
|
532次组卷
|
2卷引用:山东中学联盟2024届高考考前热身押题数学试题
解题方法
4 . 如图所示数阵,第
行共有
个数,第m行的第1个数为
,第2个数为
,第
个数为
.规定:
.
(2)求证:每一行的所有数之和等于下一行的最后一个数;
(3)从第1行起,每一行最后一个数依次构成数列
,设数列
的前n项和为
是否存在正整数k,使得对任意正整数n,
恒成立?如存在,请求出k的最大值,如不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdd4f87e7e7e32d723d7e97d980db42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0623207595425920f16e76a7f8f268b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29a285201fd7e0ad70fa7431cb89a79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df0749c4129afc0c704155f522290b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae0b861522b18be1753acc4474cbc9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5222268dda9dcb9b660f3cbedbb37757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ef9ec4340eabb42722042c65cc60d8.png)
(2)求证:每一行的所有数之和等于下一行的最后一个数;
(3)从第1行起,每一行最后一个数依次构成数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e8660fb54ba32b037b392b75316087.png)
您最近一年使用:0次
2024-05-14更新
|
1004次组卷
|
2卷引用:江苏省苏锡常镇四市2024届高三教学情况调研(二)数学试题
5 . 对于数列
,记
,称数列
为数列
的一阶差分数列;记
,称数列
为数列
的二阶差分数列,…,一般地,对于
,记
,规定:
,称
为数列
的
阶差分数列.对于数列
,如果
(
为常数),则称数列
为
阶等差数列.
(1)数列
是否为
阶等差数列,如果是,求
值,如果不是,请说明为什么?
(2)请用
表示
,并归纳出表示
的正确结论(不要求证明);
(3)请你用(2)归纳的正确结论,证明:如果数列
为
阶等差数列,则其前
项和为
;
(4)某同学用大小一样的球堆积了一个“正三棱锥”,巧合用了2024个球.第1层有1个球,第2层有3个,第3层有6个球,…,每层都摆放成“正三角形”,从第2层起,每层“正三角形”的“边”都比上一层的“边”多1个球,问:这位同学共堆积了多少层?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa321950b10e074ed9636a2f45a1a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de1b87726fc455bda6b57a6bbf945370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ea6a77537d0cc290f38e2f6879d9e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bedc5708c3a0fd109a53174902fce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812e3f80ce9ee8d0bdba2d1b846e1fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c04a9e337665339e34c3874a2c5710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da0ba7c15a05f519d47b5eaf09c0a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff0dd5f1a1c9399cea2cc938964470d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc2d03374de76c9ba32b90436cd98b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a075be43e898d86fa07e9328978c8b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198cd4d7bf7a133fbc36aee884edf5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)请用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17243bec73e79bab1216123cc094eecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c932d437f90d874026f052d65a8402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)请你用(2)归纳的正确结论,证明:如果数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec08af85b4b2f52c85f449611a688d6d.png)
(4)某同学用大小一样的球堆积了一个“正三棱锥”,巧合用了2024个球.第1层有1个球,第2层有3个,第3层有6个球,…,每层都摆放成“正三角形”,从第2层起,每层“正三角形”的“边”都比上一层的“边”多1个球,问:这位同学共堆积了多少层?
您最近一年使用:0次
名校
6 . (1)已知k,
,且
,求证:
;
(2)若
,且
,证明:
;
(3)设数列
,
,
,…,
是公差不为0的等差数列,证明:对任意的
,函数
是关于x的一次函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b4b3879d1c6debf0333008f686634e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e10e0bb04d7d261d880aea655e19db1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030d7dbc61a27892cd24b1c4d21745ee.png)
(3)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.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/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dbbfed8a6279c3c233cdd1795946ed.png)
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7 . (1)求证:当
时,
为偶数;
(2)当
时,
的整数部分是奇数,还是偶数?请证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d85d5b7ebb8bb4c5a8583f0d44c1433.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c4c033fee3a158108bcc6fa800d1fe.png)
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8 . 从数据组
中取出
个不同的数构成一个新数据组
:
.若
,
,
,使得
,
,则称数据组
为数据组
的一个k维基本数据库.
(1)判断数据组
:
是否为数据组
:
的一个2维基本数据库;
(2)判断数据组
:
是否为数据组
:
的一个3维基本数据库.
(3)若数据组
是数据组
的一个k维基本数据库,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb301fac951051f8f7b0b4d5b13212f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c089805459b250b8c8d9d67f69f3aa0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73b7984be01197112474ab97758d8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ce517554b2aae72af567d3535b9ca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9002621d667683b5f527bc8fdeab6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c4e25e1fc70cb49cb636fe9eb97cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5884761653413836c4f32731987cde6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823cff8d9c2e868e5a72727fdd37edc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46bf6f42aab3814d8e85788c86f362af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73b7984be01197112474ab97758d8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
(1)判断数据组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73b7984be01197112474ab97758d8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45ba602e142644c6ad9f802b9ce4afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1326725c16807b56fc570e4eb8e5f85e.png)
(2)判断数据组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73b7984be01197112474ab97758d8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7965b9eadf42a7bade7fa97b8c70b3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f171ec70425ed341a3f22f73ad8798c.png)
(3)若数据组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73b7984be01197112474ab97758d8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ccd029ed511f71b06fb69ad36b0354.png)
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9 . 基本不等式:对于2个正数
,它们的算术平均数不小于它们的几何平均数,即
,当且仅当
时,等号成立.可以推广到一般的情形:对于
个正数
,它们的算术平均数不小于它们的几何平均数,
.当且仅当
时,等号成立.若无穷正项数列
同时满足下列两个性质:①
;②
为单调数列,则称数列
具有性质
.
(1)若
;求数列
的最小项;
(2)若数列
的前
项和为
,判断数列
是否具有性质
,并说明理由;
(3)若
,求证:数列
具有性质
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0158862238e250d2a2598b7d4ecd148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/140564fb2e11f8411e353d2fa73fbee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b2fb1017d5dfe3a300de3e14a71b6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9304e71a623c4412188a800046a970d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efff8ec14cb242e793afab4468bf2e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2617515e5ce81b3f5d9f4e806b21b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6879960be91ea52297d587e9a014f54a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17fac66473a039bdb47c2a248b0f4854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)若数列
![](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/3b9bb1963d176a00c82828c93ca0e2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d013861990cf331c82eb453416ae31bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4247739746b8ddf1403541047e8b5580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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名校
解题方法
10 . 高斯是德国著名的数学家,近代数学奠基者之一,享有“数学王子”的称号,他和阿基米德、牛顿并列为世界三大数学家,为了纪念他,人们把函数
(
)称为高斯函数,其中
表示不超过x的最大整数. 已知:
,(
,
)
,
,
,求
的值;
(2)若
,
,
,求证:
;
(3)设
,求S除以2023的余数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b7f26fe1977bda9de200debe99f020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851eae00e3369068e33a7e6420483883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f161c2a3717f1b6c62d0d7dae0b606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2382ddc29a4fec13b4d0a11deb2cfd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d290a4927c50661098e2fbea58d77b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e167b43045b3297248e334c41c621b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0956ed974bee14fffcf9ada9cafe49d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/964a54ca7774d6fc04aaf8b85fda5fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ee581ca3282490206a8bc11dfb5ccf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a45b5fe1fea8e19026d491596392fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54e945ef81cf9c9d985aa6f2f72dc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1972a6ab2655f4cb706f7dd379902a87.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03304e01039bd5039d463207d81ce65.png)
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