so co 5 chu so ma hang don vi la 9 va nho hon so 10019 la so
so co 5 chu so ma chu so hang don vi la 9 va nho hon so 10019 la
so co 5 chu so ma chu so hang don vi la 9 va nho hon so10019 la so nao?
Goi M la tap hop cac so tu nhien co 2 chu so ma chu so hang chuc be hon
chu so hang don vi la S .Phan tu lon nhat cua F.
tim tat cac so tu nhien co ba chu so thoan man cac tinh chat sau : co tong cac chu so bang 9 chu so hang chuc lom hon chu so hang don vi la 2 don vi va neu ta doi chu so hang tram cho hang don vi thi duoc so moi lon hon so ban dau la 198 don vi
cho 1 so co 3 chu so ma chu so hang don vi lon hon hang tram . neu viet chu so hang don vi len truoc hang tram thi duoc 1 so moi lon hon so da cho la 765 , tim so da cho
cho G la tap hop cac stn co 2 chu so ma chu so hang chuc lon hon chu so hang don vi la 6 so phan tu cua tap hop nay la
Viet tap hop cac so tu nhien co hai chu so,trong do:
a) Chu so hang chuc nho hon chu so hang don vi la 5
b) Chu so hang chuc gap 4 lan chu so hang don vi
c) Chu so hang chuc nho hon chu so hang don vi, tong hai chu so bang 14
Q la tap hop so tu nhien co 2 chu so ma trong moi so chu so hang chuc lon hon chu so hang don vi la 2 . tinh so phan tu cua tap hop Q
