so (9x)8 voi x thuoc {0;1;2;..;9} viet trong he thap phan co bao nhieu chu so?
so 2100 viet trong he thap phan co bao nhieu chu so
hai so 2^2015 va 5^2015 viet trong he thap phan co bao nhieu chu so
So 2100 viet trong he thap phAn co bao nhieu chu so
hai số 2^2015 va 5^2015 viet trong he thap phan co bao nhieu chu so
hai so 2^2015 va 5^2015 viet trong he thap phan va viat lien nhau tao thanh 1 so.hoi so do co bao nhieu chu so
Khi viet lien nhau hai so 22016 va 52016 dang he thap phan ta duoc so co bao nhieu chu so ?
voi 2 chu so la ma 1 va 5(so la ma) so la ma lon nhat co the viet dc
(moi chu so co the dung nhieu lan hoac ko dung)
co gia tri tuog ung trog he thap phan la
trong he thap phan co bn so thoa man dieu kien
1,co 5 chu so
2,co 5 cs khac nhau
3,co 5 chu so trong do co c|s tan cung la 4