1 . 观察下列各式,回答问题:
第一个等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d842b2e150d723c948234ee36f4b6b0c.png)
第二个等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61dfa259a7cfab28fe63ff7d6211b1a.png)
第三个等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f4890678dc22224b4d23a8c38fbf11.png)
(1)猜想并写出:第n个等式为__________________(n为正整数);
(2)请直接写出下列各式的计算结果:
①
________________;
②
__________________;
(3)探究并计算:
的值.
第一个等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d842b2e150d723c948234ee36f4b6b0c.png)
第二个等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61dfa259a7cfab28fe63ff7d6211b1a.png)
第三个等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f4890678dc22224b4d23a8c38fbf11.png)
(1)猜想并写出:第n个等式为__________________(n为正整数);
(2)请直接写出下列各式的计算结果:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd807898598dc8d319d940e82f14371.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baeb4b5d26ab0a755c3658568dd510c3.png)
(3)探究并计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a269be604f996c35e37103d5bc3f33ce.png)
您最近一年使用:0次
名校
2 . 观察下列等式,探究其中的规律并解答问题:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1db1c8f88c5de20586db0cde44d3e28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1d4fd766978103211c9ba193587d560.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b7df6acbe5e9618d14d66cad2bbceaa.png)
.
……
(1)第4个等式中,
______;
(2)第n个等式为:______(其中n为正整数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1db1c8f88c5de20586db0cde44d3e28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1d4fd766978103211c9ba193587d560.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b7df6acbe5e9618d14d66cad2bbceaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db56ba3c5d107d9e05a664eae7b983ea.png)
……
(1)第4个等式中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
(2)第n个等式为:______(其中n为正整数).
您最近一年使用:0次
3 . 在“点燃我的梦想,数学皆有可能”数学创新设计活动中,小强设计了一个数学探究活动,他对依次排列的两个整式
和
按如下规律进行操作:第1次操作后得到3个整式
,
,
;第2次操作后得到4个整式
,
,
,
……其操作规则为:每次操作所增加的整式,都是用上一次操作得到的最后一个整式减去其前一整式的差,小强将这个活动命名为“回头差”游戏.则该“回头差”游戏的第2023次操作后得到的各整式之和是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93129dde5fa5cd84e3702e457535e274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2ac2aab408e0a6a916c348e00a8ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93129dde5fa5cd84e3702e457535e274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2ac2aab408e0a6a916c348e00a8ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f46354cd8a5be1e377dffe0b878e7a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93129dde5fa5cd84e3702e457535e274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2ac2aab408e0a6a916c348e00a8ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f46354cd8a5be1e377dffe0b878e7a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-27更新
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31次组卷
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3卷引用:安徽省铜陵市铜官区部分学校2023-2024学年七年级上学期期中数学试题
4 . 观察下面一列数,探究规律.
,
,
,
,
,
,
.
(1)这列数属于有理数中的哪一类?
(2)按照规律,写出第7个数,第8个数和第9个数.
(3)第2022个数是什么?
(4)如果这列数无限排列下去,会与哪两个数越来越接近?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459c84c9addfbd1cdd0a877ba7c584e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6ddf31b7d9225a4239883af72d153b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6c7567972273b4ba733b47bf9d5408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf50621711f3601b3f90a29502a28c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
(1)这列数属于有理数中的哪一类?
(2)按照规律,写出第7个数,第8个数和第9个数.
(3)第2022个数是什么?
(4)如果这列数无限排列下去,会与哪两个数越来越接近?
您最近一年使用:0次
5 . 如果正整数a、b、c满足等式
,那么正整数a、b、c叫做勾股数.某同学将自探究勾股数的过程列成下表,观察表中每列数的规律,可知
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3133ef62aad6bdd6637140620f068fad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
a | b | c |
3 | 4 | 5 |
8 | 6 | 10 |
15 | 8 | 17 |
24 | 10 | 26 |
… | … | … |
x | 14 | y |
A.67 | B.34 | C.98 | D.73 |
您最近一年使用:0次
2023-08-01更新
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178次组卷
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7卷引用:云南省昆明市呈贡区2022-2023学年八年级下学期期末数学试题
云南省昆明市呈贡区2022-2023学年八年级下学期期末数学试题(已下线)专题3.6 勾股定理章末八大题型总结(培优篇)-2023-2024学年八年级数学上册举一反三系列(苏科版)(已下线)专题1.6 勾股定理章末八大题型总结(培优篇)-2023-2024学年八年级数学上册举一反三系列(北师大版)(已下线)专题2.14 特殊三角形章末十八大题型总结(培优篇)-2023-2024学年八年级数学上册举一反三系列(浙教版)(已下线)专题05 勾股定理(十一大题型)-【好题汇编】备战2023-2024学年八年级数学上学期期末真题分类汇编(山东专用)(已下线)专题14.6 勾股定理章末八大题型总结(培优篇)-2023-2024学年八年级数学上册举一反三系列(华东师大版)(已下线)专题03 勾股定理6种常考题型归类-【好题汇编】备战2023-2024学年八年级数学下学期期末真题分类汇编(云南专用)
6 . 观察下列等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ed98e34b84285163a8b1b45c6fe403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1cd9f5433594f0a1059d4b1c3058ea.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231fd0fbb933002c6a527dcc4f7186f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a646b098601ebe77beadf1707deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
,将以上三个等式两边分别相加得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ed98e34b84285163a8b1b45c6fe403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231fd0fbb933002c6a527dcc4f7186f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a646b098601ebe77beadf1707deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1cd9f5433594f0a1059d4b1c3058ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1cd9f5433594f0a1059d4b1c3058ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
.
(1)猜想并写出
;
(2)求:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ed98e34b84285163a8b1b45c6fe403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231fd0fbb933002c6a527dcc4f7186f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a646b098601ebe77beadf1707deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1978720b41e5b79714a8bc5692ff4bc1.png)
;
(3)探究并计算:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ed98e34b84285163a8b1b45c6fe403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1cd9f5433594f0a1059d4b1c3058ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231fd0fbb933002c6a527dcc4f7186f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a646b098601ebe77beadf1707deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ed98e34b84285163a8b1b45c6fe403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231fd0fbb933002c6a527dcc4f7186f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a646b098601ebe77beadf1707deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1cd9f5433594f0a1059d4b1c3058ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1cd9f5433594f0a1059d4b1c3058ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
(1)猜想并写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0238657619e3f3b63c0affd5d3b7492.png)
(2)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ed98e34b84285163a8b1b45c6fe403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231fd0fbb933002c6a527dcc4f7186f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4a646b098601ebe77beadf1707deca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1978720b41e5b79714a8bc5692ff4bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/017e456192eb3866048bba6cc64c4dd3.png)
(3)探究并计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1bc323b03ecc37a6cbf16ce2d163fd.png)
您最近一年使用:0次
2023-10-11更新
|
244次组卷
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8卷引用:山东省滨州市无棣县碣石山镇中学2023-2024学年七年级上学期第一次月考数学试题
山东省滨州市无棣县碣石山镇中学2023-2024学年七年级上学期第一次月考数学试题山东省滨州市惠民县2023-2024学年七年级上学期第一次质量检测数学试题(已下线)期中复习(压轴30题精选)-2023-2024学年七年级数学上学期期中期末考点归纳满分攻略讲练(浙教版)(已下线)第02讲 代数式(5大题型)-【帮课堂】2023-2024学年七年级数学上册同步学与练(浙教版)陕西西安西电附中2020-2021学年1七年级上学期第一次月考数学试题(已下线)专题1.42 有理数混合运算31题(培优篇)(专项练习)-2022-2023学年七年级数学上册基础知识专项讲练(人教版)(已下线)专题2.33 有理数混合运算31题(培优篇)(专项练习)-2022-2023学年七年级数学上册基础知识专项讲练(北师大版)江苏省盐城市滨海县滨淮初中教育集团2022-2023学年上学期七年级第一次学情检测数学试题
7 . 发现 能被8整除的正数一定能表示为两相邻奇数的平方差.
验证 观察下列各式,归纳规律:
第1行:
,
第2行:
,
第3行:
,
第4行式子是:______,
……
______
( )![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921ef5abce73648e3834140df9a72aa8.png)
( )![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921ef5abce73648e3834140df9a72aa8.png)
探究 根据上面的规律写出第n行式子,并说明“能被8整除的正数一定能表示为相邻两奇数的平方差”的正确性(n为正整数).
验证 观察下列各式,归纳规律:
第1行:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2389ef9de9e93415ab9eea8fb353cec8.png)
第2行:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c5ed829291da76bba746ded82a6496.png)
第3行:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4490fbce77f424b969a4e0470cab8a5b.png)
第4行式子是:______,
……
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e015877e845ebde6a4776440ee846d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921ef5abce73648e3834140df9a72aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921ef5abce73648e3834140df9a72aa8.png)
探究 根据上面的规律写出第n行式子,并说明“能被8整除的正数一定能表示为相邻两奇数的平方差”的正确性(n为正整数).
您最近一年使用:0次
名校
8 . 将正方形
(如图1)作如下划分:
第1次划分:分别连接正方形
对边的中点(如图2),得线段
和
,它们交于点M,此时图2中共有5个正方形;
第2次划分:将图2左上角正方形
再作划分,得图3,则图3中共有9个正方形;
![](https://img.xkw.com/dksih/QBM/2023/5/10/3234922872307712/3252997623554048/STEM/233cd8aeb0d24ab091cccc4954083c2f.png?resizew=458)
(1)若每次都把左上角的正方形一次划分下去,则第100次划分后,图中共有______个正方形;
(2)继续划分下去,第几次划分后能有805个正方形?写出计算过程.
(3)能否将正方形性
划分成有2018个正方形的图形?如果能,请算出是第几次划分,如果不能,需说明理由.
(4)如果设原正方形的边长为1,通过不断地分割该面积为1的正方形,并把数量关系和几何图形巧妙地结合起来,可以很容易得到一些计算结果,试着探究求出下面表达式的结果吧.
计算
(直接写出答案即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
第1次划分:分别连接正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b95463a97c60db3250cb641bf6523d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
第2次划分:将图2左上角正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082e7ff27eafa7a3ca750107bdc56e34.png)
![](https://img.xkw.com/dksih/QBM/2023/5/10/3234922872307712/3252997623554048/STEM/233cd8aeb0d24ab091cccc4954083c2f.png?resizew=458)
(1)若每次都把左上角的正方形一次划分下去,则第100次划分后,图中共有______个正方形;
(2)继续划分下去,第几次划分后能有805个正方形?写出计算过程.
(3)能否将正方形性
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(4)如果设原正方形的边长为1,通过不断地分割该面积为1的正方形,并把数量关系和几何图形巧妙地结合起来,可以很容易得到一些计算结果,试着探究求出下面表达式的结果吧.
计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cf666ae2378ba017c77bfe134afa6a.png)
您最近一年使用:0次
名校
9 . 如图1,我们在2019年10月的日历中发现一种“结构”,现定义一种“结构”运算,
,可以发现,对于符合结构要求的四个数,运算结果是相同的.
如
,
(1)如图2,将正整数依次填入5列的长方形数表中,探究不同位置的“结构”运算,可以发现相应的“结构”运算结果也是一个定值,则这个定值为______.
(2)若将正整数依次填入k列的长方形数表中
,继续前面的探究,可以发现相应“结构”运算结果是与列数k有关的定值,请用k表示出这个定值,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91ae8359d28ef85943582b2f22a8141.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/11/9712180d-85c2-4ffc-8afd-5b80a1613457.png?resizew=100)
如
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ad6f4f541f621bec83382cd2f4a55a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/11/f672f917-9478-4592-8aaf-5da08d11362c.png?resizew=512)
(1)如图2,将正整数依次填入5列的长方形数表中,探究不同位置的“结构”运算,可以发现相应的“结构”运算结果也是一个定值,则这个定值为______.
(2)若将正整数依次填入k列的长方形数表中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c0902ac3138d1276afdcababfa04b9.png)
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10 . 如图,已知
,探究![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55ca382b594057ffcd9511b3e92e85c.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55ca382b594057ffcd9511b3e92e85c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/6/3295c48d-138f-439c-8b51-0107807c666d.png?resizew=699)
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