day la may so 9 vay? 999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
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T
2
22 tháng 3 2016
ta có tổng tbc của 25 số chẵn liên tiếp là 86
=>tổng 25 số chẵn đó là 86x25=2150
gọi số nhỏ nhất trong 25 số dó là a
=>a+a+2+a+4+a+6+...+a+48=2150
=>25a+(2+4+6+..+48)=2150
=>25a=1550
=>a=62
=>số lớn nhất trong dãy số là a+48=62+48=110
VH
5
CS
3
CT
3
G
0
28 tháng 2 2017
Chữ số tận cùng của 2 ngũ 2015 là:
2 ( mình đang bạn nên không giải dc )
Chúc bạn may manws~!
28 tháng 2 2017
Số các chữ số 2 để nhân được đuôi 6 là:4
2015:4=503(dư 3)
vậy:2x2x2=8
Đuôi là 8
Chúc bạn may mắn....
ban ranh thi ban dem di .minh ko ranh
Ông bn bị lm sao vậy