Cho tap hop A = {2;3;4;5 }
a ) viet cac tap hop con cua tap hop A ma moi phan tu cua no deu la so chan
b ) viet cac tap hop con cua tap hop A ma moi phan tu cua no deu la so le
c ) viet cac tap hop con cua A
cho tap hop A ={10;13;17;20;25;31;41;58;61;70} 1)viet tap hop B gom cac phan tu cua tap hop A co chu so 1.Tap hop B co bao nhieu chu so 2) viet tap C gom cac phan tu cua tap hop A co chua chu so 3 3) bieu dien quan he giua cac tap hop A,B,C bang ki hieu
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 .
Cho tap hop A={1;2;3;4;5;6;7;8;9} . Viet cac tap hop con cua tap hop A sao cho moi tap hop deu co 3 phan tu ma tong cac so trong moi tap hop deu bang 15
lay vi du ve 1 tap hop
nguoi ta dat ten cho tap hop nhu the nao
viet tap hop A cac so tu nhien nho hon 5. chi ra cac phan tu cac tap hop tu A. so 1 co thuoc tap hop A hay ko, viet ki hieu. so 6 co thuoc tap hop A hay ko, viet ki hieu
viet tap hop B cac so tu nhien nho hon 6 bang 2 cach
viet tap hop D cac so tu nhien nho hon 7 roi dien ki hieu thich hop vao o vuong : 2.. D; 10..D
viet tap hop cac chu cai trong tu ''nha trang ''
viet tap hop B cac so tu nhien y sao cho 2598<112.y<3416
bai 2
cho tap hop A={12;14;16}
a)viet tap hop A bang cach chi ra tinh chat dac trung
b)viet tat ca cac tap hop con cua tap hop A
c) chung to tap hop A la tap hop con cua B {0;2;4;.....;18;20} cho biet so tap hop con cua tap hop B
Cho A la tap hop cac so tu nhien lon hon 50va nho hon 100.Viet tap hop A bg cach chi ra cac tinh chat dc trung cho cac phan tu cua no
cho B ={50;51;52...97;98;99 } .dung 1 trong cac ki hieu
thuoc;kg thuoc;bg; tap hop con de bieu dien moi quan he giua 2 tap hop A va B
b] Tap hop A co bao nhieu phan tu? tim tg tat ca cac so la phan tu cua tap hop A
Bai 1 : Viet tap hop A cac so tu nhien lon hon 4 va ko vuot qua 7 bang hai cach .
a ) Viet tap hop cac so tu nhien khac 0 va ko vuot qua 12 bang hai cach .
b ) Viet tap hop M cac so tu nhien lon hon hoac bang 11 va ko vuot qua 20 bang hai cach .
c ) Viet tap hop M cac so tu nhien lon hon 9 ,nho hon hoac bang 15 bang 2 cach .
d ) Viet tap hop A cac so tu nhien ko vuot qua 30 bang 2 cach .
e ) Viet tap hop B cac so tu nhien lon hon 5 bang 2 cach .
f ) Viet tap hop C cac so tu nhien lon hon hoac bang 18 va ko vuot qua 100 bang 2 cach .
Ai lam nhanh minh se tick cho nha ,minh can gap .
hay tinh so phan tu cua cac tap hop sau
a, tap hop A cac so tu nhien le co 3 chu so
b, Tap hop B cac so 2,5,8,11,...,296
c, tap hop C cac so 7,11,15,19,...,283
