A = {17; 18; 19; .......; 31}
A = {x \(\in\)N / 16 < x < 32}
A = {17; 18; 19; .......; 31}
A = {x \(\in\)N / 16 < x < 32}
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 viet tap hop cac so tu nhien lon hon hoac bang 4 nho hon 16 bang 2 cach.
e, E tap hop va so tu nhien le khong vuot qua 30
f, F tap hop cac so tu nhien chan khong vuot qua 30
g, G tap hop cac so tu nhien lon hon 30
h, H tap hop cac so tu nhien lon hon 30 nho hon 31
k, K tap hop cac so tu nhien chia cho 3 du 1 lon hon 20 nhung nho hon 100
viet cac tap hop sau va cho biet moi tap hop co bao nhieu phan tu ?
a) tap hop cac so tu nhien khong vuot qua 50
b) tap hop cac so tu nhien lon hon 8 nho hon 9
Viet tap hop B cac so tu nhien le lon hon 10 nho hon 20
tap hop cac so tu nhien nho hon 5 ma lon hon 6
Tap hop cac so tu nhien x ma x.0=7
Tap hop cac so tu nhien be hon 0
viet tap hop A cac so tu nhien lon hon 8 va nho hon 14 theo hai cach
viet tap hop B cac so tu nhien chan lon hon 2 va nho hon 10 bang hai cach.
So chan la so tu nhien co chu so tan cung la 0;2;4;6;8 ; so le la so tu nhien co chu so tan cung la 1;3;5;7;9;.Hai so chan ( hoac so le ) thi
hon kem nhau 2 don vi a)viet tap C cac chang nho hon 10.b) viet tap hop L cac so le lon hon 10 nhung nho hon 20.c)viet tap hop A ba chu so chan lien tiep trong do so nho nhat la 18.d)viet tap hop B bon so le lien tiep, trong do so lon nhat la 31