天气预报 > 体育 > 4的平方根是多少?
4的平方根是多少?
更新时间: 2021-05-13 14:49:38  

1、4的平方根等于±2。

2、平方根,又叫二次方根,表示为〔±√ ̄〕,其中属于非负数的平方根称之为算术平方根(arithmetic square root)。一个正数有两个实平方根,它们互为相反数,负数没有平方根。

关键词: 平方根 多少

4的平方根是多少?相关经验

天气预报

最新推荐

页面:/news/view-3292064/ | 耗时:0.4317 s | 内存:2.11 MB | 查询:5 | 缓存读取:3 写入:1 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=3292064 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3292064 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3292064 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3345420,521486,827636,488967,3460390,3489560,3180383,2958870,2171482,1155172,383125,361207,3413245,3415212,953234,2263038,845947,1110479,868922,1083244,679048,743009,459734,1698104,602822,424066,1650736,2306592,1414402,1674517) ORDER BY field (ArticleID,3345420,521486,827636,488967,3460390,3489560,3180383,2958870,2171482,1155172,383125,361207,3413245,3415212,953234,2263038,845947,1110479,868922,1083244,679048,743009,459734,1698104,602822,424066,1650736,2306592,1414402,1674517)
SELECT * FROM tbl_categories where CategoryID=90024 LIMIT 0,1