tinh tong cac phan so toi gian lon hon 3 nhung nho hon 4 co mau so bang 7 ket qua la..............
tim phan so toi gian nho nhat co tu va mau la cac so tu nhien sao cho khi nhan phan so do lan luot voi cac phan so 10/7;5/6;15/9 thi moi tich tim duoc la so tu nhien.
cho B la tap hop cac so tu nhien chan khong nho hon 13 va khong lon hon 3000. B co so phan tu la......
tim cac phan so toi gian co tu bang 4 lon hon 2/5 va nho hon 2/3
tim phan so toi gian nho nhat co tu va mau la cac so tu nhien sao cho khi nhan phan so lan luot voi moi so \(\frac{10}{7};\frac{5}{6};\frac{15}{9}\)thi moi tich tim duoc la so tu nhien
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?
tim phan so toi gian nho hon 1 co tu va mau deu duong va tich cua tu va mau bang 120.
co bao nhieu phan so toi gian co tu la 10 ,lon hon 10/13 nhung nho hon 10/7
tim tong cac phan so lon hon -1 phan 7 nho hon -1 phan 8 va co tu la-3