其他 返回
天气预报 > 其他 > 3的21次方是多少
3的21次方是多少
更新时间： 2020-11-11 00:00:00  

1、3^21=10460353203。

2、演算过程：

3^21=3*3^20

=3*(3^2)^10

=3*9^10

=3*(10-1)^10

=3*[10^10-C(10,1)*10^9+C(10,2)*10^8-C(10,3)*10^7+……+C(10,8)*10^2-C(10,9)*10+1]

=3*[45*10^8-120*10^7+210*10^6-252*10^5+210*10^4-120*10^3+45*10^2-10*10+1]

=3*[(33+2.1-0.252)*10^8+(21-1.2)*10^5+4500-100+1]

=3*[34.848*10^8+19.8*10^5+4500-100+1]

=3*[34848*10^5+19.8*10^5+4500-100+1]

=3*[34867.8*10^5+4401]

=104603.4*10^5+13203

=10460353203

关键词： 次方 多少

3的21次方是多少相关经验

天气预报

最新推荐

页面:/news/view-128922/ | 耗时:0.4835 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=128922 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=128922 LIMIT 0,1
select * from tbl_Articles_sphinx where id=128922 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1129515,1123207,1129651,1099857,1072751,1049174,1021036,1047309,1052952,1090663,1105810,1132489,1131105,3449156,1090032,1045643,1125027,1051847,964762,1064085,1100873,1066118,2296255,1047637,1063559,911418,1298135,1045911,1061566,1065729) ORDER BY field (ArticleID,1129515,1123207,1129651,1099857,1072751,1049174,1021036,1047309,1052952,1090663,1105810,1132489,1131105,3449156,1090032,1045643,1125027,1051847,964762,1064085,1100873,1066118,2296255,1047637,1063559,911418,1298135,1045911,1061566,1065729)