作业帮7+77+777+······+77······77(1111个7)后两位数字是
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/12 05:43:26
xQN@Y*-3-.
B @@@$(h0!>$
Fe:(Ѳ#Ŝ9{]Ȃr>`lQ{~ UEjg{o_߄^' W
*ҫ,:=>9T4wEq(VPD#҄f(c4&(-R&@ Aa7 yc'5 LQ^T >; (! oDkcX !:wBE }M RYpWH$@B[E
ceyQb:'^rVc qjL
+ NM3qՍ!a &lXg < H1r=_/}=g3"m|B
7+77+777+······+77······77(1111个7)后两位数字是
7+77+777+······+77······77(1111个7)后两位数字是
7+77+777+······+77······77(1111个7)后两位数字是
7+77+777+······+77······77(1111个7)=7×（1+11+111+.）除了1意外,其他后两位都是11,共有1110个,11*1110=12210
（12210+1）*7=85477
后两位数字为77
由于77*1111=85547
所以后两位数字是47176的43次方-38的32次方是10的倍数吗？ 12的77次方+23的55次方能被5整除吗？是 不能为什么（1）6^n 的后一位数字是6 8^n 的后一位数字是8,4,2,6 8^32的后一位数字是6 结果的后一位数字是0. （2）2^n 的后一位数字是2,4,8,6 77/4的余数是1，2^77后一位数字是2 3^...
全部展开
由于77*1111=85547
所以后两位数字是47
收起
蛋疼
7+77+777+······+77······77(1111个7)后两位数字是
计算1/（1*4）+1/（4*7）+1/（7*10)+------+1/(97*100)································································································
数列7,77,777,7777,···的前n项和Sn?
····
·
·
·
····
··········
··········
55*66+66*77+77*78+88*89简便运算要过程,急············
求乘积777····77（2001个7）*200120012001的各各数位上之和
1 2 3 4 ·····7 ·······10 ········?1 3 5 7 ·····?······?··········290 1 4 9 ·····?······?··········?
求···············
什么植物有应激性只要植物名 ·········································································································
急··························
急 ··············急············
这是什么蛾类昆虫?如题请给予回答···········································································