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

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

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 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

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 e la tap hop cac so tu nhien co hai chu so ma chu so hang chuc nho hon chu so hang don vi la 4

so phan tu cua e la

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 .

tap hop f cac so tu nhien co hai chu so trong do chu so hang don vi lon hon chu so hang chuc la 3