1;3;7;9
tick mk cho tròn 180 nha !!!
1;3;7;9
tick mk cho tròn 180 nha !!!
tap hop cac chu so tan cung cua so nguyen to lon hon 5
tap hop cac chu so tan cung co the co cua mot so chinh phuong la
tap hop cac chu so tan cung co the cua mot so chinh phuong la
tap hop cac so nguyen to co 2 chu so lon hon 51 co so phan tu la
So chan la so tu nhien co chu so tan cung la 0;2;4;6;8 ; so le la so tu nhien co chu so tan cung la 1;3;5;7;9;.Hai so chan ( hoac so le ) thi
hon kem nhau 2 don vi a)viet tap C cac chang nho hon 10.b) viet tap hop L cac so le lon hon 10 nhung nho hon 20.c)viet tap hop A ba chu so chan lien tiep trong do so nho nhat la 18.d)viet tap hop B bon so le lien tiep, trong do so lon nhat la 31
tim loi giai bai toan: cho hai tap hop A = (1;2;3;4;5;6)va B la tap hop cac so tu nhien le, lon hon 2. goi C la mot tap hop con nao do cua ca hai tap hop A va B. so phan tu nhieu nhat co the cau 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?
tap hop cac chu so tan cung co the co cua 1 so chinh phuong la