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 tap hop A gom cac phan tu la cac so nguyen co gia tri tuyet do nho hon 2014 . tap hop A co bao nhieu phan tu. tinh tong cac phan tu cua Tap hop A

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 .

Tap hop cac so nguyen am lon hon -100 co so phan tu la

tap hop cac so nguyen to co 2 chu so lon hon 51 co so phan tu la

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

tap hop A la tap hop gom cac so tu nhien co 3 chu so va tong cac chu so bang 2. Hoi tap hop A co bao nhieu phan tu?

tap hop cac so nguyen to co 2 chu so lon hon 51co so phan tu la

tap hop các so nguyen am co ba chu so nho hon -100 co phan tu la