C1 :A = { 9, 10, 11, 12, 13}
C2: A ={ \(x\in n\)/\(8< x< 14\)}
C1 :A = { 9, 10, 11, 12, 13}
C2: A ={ \(x\in n\)/\(8< x< 14\)}
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 .
VIET TAP HOP A CAC SO TU NHIEN LON HON 7 VA NHO HON HOAN BANG 15 THEO HAI CACH
Viet tap hop A cac so tu nhien lon hon 6 va nho hon hoac bang 10 bang hai cach
viet tap hop B cac so tu nhien chan lon hon 2 va nho hon 10 bang hai cach.
viet cac tap hop sau theo 2 cach
A tap hop cac so tu nhien nho hon 7
B TAP HOP CAC SO TU NHIEN CHAN
C tap hop cac so tu nhien le va nho hon 20
Cho A la tap hop cac so tu nhien nho hon 7 va b la tap hop cac so tu nhien chan nho hon 8
hay viet tap hop a va b la cach liet ke cac phan tu
a' viet tap hop e cac so tu nhien ko nho hon79 nhung ko lon hon85 bang 2 cach
b'viet tap hop m cac so tu nhien lon hon 50 nho hon78 va chia het cho 4 bang 2 cach
viet tap hop A cac so tu nhien lon hon 8 va nho hon 14 bang hai cach, sau do dien ki hieu thich hop vao o vuong:
12...A 16...A
viet tap hop a cac so tu nhieu lon hon 8 va nho hon 14 bang 2 cach , sau do dien ki hieu thich hop vao o vuong