tong cua tat caa so co 4 chu so khac nhau viet boi 1 2 3 4 la
viet cac so 2 chu so co hang chuc la 3
viet cac so 2 chu so co hang don vi hon hang chuc la 2
so 0.2(63) viet duoi dang phan so la
cho tap hop
A=(0;1;4;9;....;10000)
viet a duoi dang chi ra tinh chat dac trung
viet tat ca cac so co 2 chu so , biet rang chu so han don vi hon chu so hang chuc la 4 don vi
giai ro rang ra cho mk nha !
Tim mot so co 2 chu so, biet rang khi viet them chu so 4 vao ben trai so do ta duoc mot so gap chin lan so phai tim
co 1 ten trom muon len vao lay kho bau tang thu 1 co 2 ong dang danh co tang thu 2 co ba ban chieu tang thu 3 con cho tang thu 4 co thang ai tang thu 5 co kho bau hoi lam sao ten trom lay duoc kho bau
[chu y khong treo tuong ,....] [phai di bang cua chinh]
nha an co 3 thua ruong ,me an gat 2 thua ruong,ba an 1 thua ruong.hoi nha an co bao nhieu con bo?
1 ) 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10
2 ) dam quang tuan anh ( Online math ) va Huy Bin ( hoc 24 ) ai dep trai hon ??
Luu y : Dung co viet noi quy nha