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

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.

CHO G LA TAP HOP CAC SO TU NHIEN CO HAI CHU SO HANG CHUC HON CHU SO HANG DON VI LA 6 SO PHAN TU CUA G LA BAO NHIEU .......

CÁM ON CAC BAN NHIEU NHÉ

cho h la tap hop cac so tu nhien co hai chu so ma chu so hang chuc gap 3 lan chu so hang don vi phan tu nho nhat cua tap hop h la

cho e la tap hop cac so tu nhien co hai chu so ma chu so hang chuc nho hon chu so hang don vi la 4

so phan tu cua e la

cho B la tap hop cac so co 2 chu so, trong do chu so hang chuc nho hon chu so hang don vi la 5. tap hop B co so phan tu?

cho Fla tap hop cac so tu nhien co 2 chu so ma chu so hang chuc nho hon hang don vi la 5 . hoi tap hop Fco bao nhieu phan tu

Câu 1:so phan tu cua tap hop cac so tu nhien chan lon hon 3 va nho hon 2000

Câu 2:so phan tu cua tap hop cac so tu nhien chan khong vuot qua 30 la

Câu 3 co bao nhieu so tu nhien co hai chu so trong do chu so hang chuc nho hon  chu so hang don vi la 5 ?

Câu 4:so phan tu cua tap hop cac so tu nhien khong vuot qua 20 la

Câu 5:cho tap hop M={5;8;9;1986;2010}co bao nhieu tap hop con cua M gpm nhung so chan?

viet cac tap hop sau bang cach liet ke phan tu va chi ra moi tap hop co bao nhieu phan tu . 

a, tap hop A cac so tu nhien co 2 chu so trong do chu so hang chuc lon hon chu so hang don vi la 2 .

b, tap hop B cac so tu nhien co 3 chu so bang 3 .