viet tap hop bang cach lien ket cac phan tu cua tap hop trong cac so tu nhien lon hon 14 nho hon15 co chua chu so 3 cac so 13 ,25,53 co thuoc tap hop hay khong
1.viet tap hop M gom cac phan tu la uoc chung cua 12 va 24
2.Tim cac tap hop con cua M co 2 phan tu
3.Chi ra so nguyen to trong tap hop M
viet tap hop B cac so tu nhien nam giua 2 so a va a+6
viet cac phan tu cua tap hop B theo thu tu giam dan
cho tap hop A={3;4;5}.Tap hop A co bao nhieu phan tu;co bao nhieu tap hop con
Bai9: Cho A = { x ∈ N \ x ⋮ 2, x ⋮ 3,x< 100
B = { x ∈ N \ x ⋮ 6,x< 100
Hay viet cac tap hop A,B bang cach liet ke cac phan tu
a)Viet tap hop M cac so tu nhien lon hon 9, nho hon hoac bang 15 bang hai cach.
b)Viet tap hop A cac so tu nhien khong vuot qua 30 bang hai cach.
a)Viet tap hop M cac so tu nhien lon hon 9, nho hon hoac bang 15 bang hai cach.
b)Viet tap hop A cac so tu nhien khong vuot qua 30 bang hai cach.
cho tap hop E ={1,a,b,2} cach viet nao la dung nhat
Viet tap hop cac chu so cua cac so:
a)97542 b)29635 c)60000