cho Fla tap hop cac so tu nhien co 2 chu so ma chu so hang chuc nho hon hang don vi la 5 . hoi tap hop Fco bao nhieu phan tu
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 .
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?
Cho tap hop cac so tu nhien co hai chu so , trong do chu so hang chuc nho hon chu so hang đon vi la 5 . So Phan tu cua tao hop đo la...?
Viet tap hop cac so tu nhien co hai chu so,trong do:
a) Chu so hang chuc nho hon chu so hang don vi la 5
b) Chu so hang chuc gap 4 lan chu so hang don vi
c) Chu so hang chuc nho hon chu so hang don vi, tong hai chu so bang 14
cho G la tap hop cac stn co 2 chu so ma chu so hang chuc lon hon chu so hang don vi la 6 so phan tu cua tap hop nay la
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
viet tap hop cua cac so tu nhien co 2 chu so trong do
a chu so hang chuc nho hon chu so hang don vi la 5
b chu so hang chuc gap bon lan chu so hang don vi
c chu so hang chuc nho hon chu so hang don vi tong hai so do bang 14
ai giup mk thi se kb nha