Câu 1:so phan tu cua tap hop cac so tu nhien chan lon hon 3 va nho hon 2000
Câu 2:so phan tu cua tap hop cac so tu nhien chan khong vuot qua 30 la
Câu 3 co bao nhieu so tu nhien co hai chu so trong do chu so hang chuc nho hon chu so hang don vi la 5 ?
Câu 4:so phan tu cua tap hop cac so tu nhien khong vuot qua 20 la
Câu 5:cho tap hop M={5;8;9;1986;2010}co bao nhieu tap hop con cua M gpm nhung so chan?
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 h la tap hop cac so tu nhien co hai chu so ma chu so hang chuc gap 3 lan chu so hang don vi phan tu nho nhat cua tap hop h la
cho E tap hop cac so tu nhien co hai chu so ma hu so hang chuc nho hon chu so hang don vi la 4 ,tim so tap hop g
cho B la tap hop cac so co 2 chu so, trong do chu so hang chuc nho hon chu so hang don vi la 5. tap hop B co so phan tu?
viet bang cah liet ke cac phan tu cua cac tap hop sau:
a) tap hop A cac so tu nhien co 2chu so ma chu so hang chuc lon hon chu so 3
b) tap hop B cac so tu nhien co 2 chu so ma chu so hang don vi gap doi hang chuc
c) tap hop C cac so tu nhien co 2 chu so ma trong so do co it nhat 1 chu so 4
CHO G LA TAP HOP CAC SO TU NHIEN CO HAI CHU SO HANG CHUC HON CHU SO HANG DON VI LA 6 SO PHAN TU CUA G LA BAO NHIEU .......
CÁM ON CAC BAN NHIEU NHÉ
cho h tap hop cac so tu nhien co 2 chu so ma chu so hang chuc gap 3 aln chu so hang don vi . Phan tu nho nhat cua tap hop h
Q la tap hop so tu nhien co 2 chu so ma trong moi so chu so hang chuc lon hon chu so hang don vi la 2 . tinh so phan tu cua tap hop Q