1:1  11-16[数学]张老师教大家按图索骥，找规律
推荐理由：找规律题在中考中的地位日益加重，同学经常找不到做题的灵感。张老师教你透过现象抓本质，轻松找规律！ 讲解人：http://www.jiandan100.cn/teacher/c06a833adbd147159b4c4a24ec26cf5b/ ，北京一零一中学数学教师，区骨干教师，海淀区“五四青年”优秀教育工作者。 题面：根据数列所反映的规律，第n行第n列交叉点上的数应为______ .  【答案及详解】 本部分内容设定了隐藏,需要回复后才能看到
 跟帖分享你的答案，即可看到正确答案和解析！别忘了回帖后再点进来查看答案哦~通过本题，同学们要学会“透过现象，抓本质”哦！ ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 查看更多本年级每周一题，请点击：http://www.jiandan100.cn/bbs/upload/forumdisplay.php?fid=376& 浏览本期“简单学习电子周报”完整目录：http://www.jiandan100.cn/bbs/upload/viewthread.php?tid=653404 |
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板凳#
发布于：2012-11-16 15:03
不懂……
 不懂啊！我是数学盲！ |
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地板#
发布于：2012-11-16 17:35
n+(n-1)呗
so easy |
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4楼#
发布于：2012-11-16 17:36
化简后为2n-1
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5楼#
发布于：2012-11-16 18:49
看看是什么规律！
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7楼#
发布于：2012-11-16 20:09
55 gghhhhhdfnfgfgd
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8楼#
发布于：2012-11-16 20:50
n+(n-1)对吗？
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9楼#
发布于：2012-11-16 21:21
回复 #1 admin 的帖子
答案应该是2N-1吧 |
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