a) \(14\in A\)
b) \(A\subset B=\left\{14\right\}\)
c) \(A\subset C=\left\{14;30\right\}\)
p/s nha! mk cx ko chắc nx!
a) \(14\in A\)
b) \(A\subset B=\left\{14\right\}\)
c) \(A\subset C=\left\{14;30\right\}\)
p/s nha! mk cx ko chắc nx!
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
viet tap ho a cac so tu nhienlon hon f7 va nho hon 12 sau do dien ki hieu vao o trong thich hop 9 a ,14 a
cho tap hop A=8;10 . dien ki hieu e ,c hoac = vao o trong
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 ''
Tap hop A cac so tu nhien lon hon 7 nho hon 12 ,sau do dien ki hieu thich hop vao cho trong :
9 ...A ,14 ...A
Ai nhanh se tick cho nha
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 nhien lon hon 7 va nho hon 12, sau do dien ki hieu thich hop vao o vuong
cho hai tap hop: A = (a,b) ; B = ( b,x,y) dien ki hieu thich hop vao o trong: x....A y....B b....A
giup minh voi
Do: hay dien cac so 1,-1,2,-2,3,-3 vao cac o trong hinh vuong ben duoi ( moi so vao mot o) sao cho tng 3 s tren moi dong , moi cot co tong hoac moi duong cheo deu bang nhau (SGK trang 99) tap 1 lop 6