cho Q la tap hop co 3 phan tu .hoi tap hop Q co tat ca bao nhieu tap hop con
cho tap hop A la cac so co ba chu so duoc tao thanh boi ba so 0,5,8 va moi so chi duoc xuat hien mot lan
a/ tap hop A co bao nhieu phan tu?
b/ Aco bao nhieu tap hop con ? liet ketat ca cac tap hop con do?
tap hop M={1;2;3;4} tap hop con cua tap hop m gom hai phan tu la
tap hop A co 3 phan tu .so tap hop con nhieu hon 1 cua tap hop A la?
cho A la tap hop cac so tu nhien trong do co chua chu so 0 va B la tap hop cac so tu nhien co dang a0b . Tap hop C gom cac phan tu vua thuoc A, vua thuoc B. Tap hop C co bao nhieu phan tu?
tim loi giai bai toan: cho hai tap hop A = (1;2;3;4;5;6)va B la tap hop cac so tu nhien le, lon hon 2. goi C la mot tap hop con nao do cua ca hai tap hop A va B. so phan tu nhieu nhat co the cau la
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?
cho tap hop a={1,2} , hoi co bao nhieu tap hop con
cho tap hop A :{m,n,p,q,r}
a,Viet cac tap hop A co 1 phan tu
b, Viet cac tap hop A co 2 phan tu
c, viet cac tap hop A co 3 phan tu
d, viet cac tap hop A co 4 phan tu
e,tap hop a co bao nhieu tap hop con?
