Các câu hỏi tương tự
Cau 1: Co tat ca bao nhieu so co 3 chu so ma trong moi so co duy nhat 1 chu so 5.
Cau 2: Biet rang 3n+1 va 5n+4 (n thuoc N) la hai so khong nguyen to cung nhau. Khi do UCLN cua 3n+1 va 5n+4 la bao nhieu.
Cau 3: Tim cap (x;y) nguyen am thoa man:xy+3x+2y+6=0 va lxl+lyl=5.
cho 2 STN co hieu la 4 . neu nhan 1 so len 3 lan va giu nguyen so kia ta co hieu la 60 . tim 2 STN
an binh chi dung moi nguoi co 1 so nhan vo khac nhau biet neu an cho cac ban = so nhan vo cac ban dng co roi lan luot binh,chi,dung cung lam nhu vay cuoi cung cac van co sogai bai toan nhan vo = nhau va = 16 nhan vo tim so nhan voi cua moi ban luc dau
a) Tim so nguyen n de bieu thuc de n-1 la uoc cua 5
b) Tim so nguyen m de bieu thuc : A = -5/m-1 co gia tri nguyen voi n khong =1
Chu y :may ban lam 2 cau ruj minh tick cho ha
tim 5 cau ca dao hoac tuc ngu noi ve tinh cam gia dinh. Xac dinh danh tu o moi cau va cho niet tu loai ( so tu, chi tu, pho tu) cua cua tu di lem( truoc hoac sau) nhung danh tu da tim duoc
cho a va b la cac so tu nhien khac 0 sao cho trong 4 cau sau a+1 chia het cho b . a=2b+5. a+b chia het cho 3 . a+7b la so nguyen to co 3 cau dung 1 cau sai .tim a,b
Hay viet 10 tu chi phu am va 5 tu chi nguyen am va viet 1 cau toan nguyen am va viet 2 cau toan phu am
tim cac gia tri nguyen x sao cho bieu thuc p=2x-1/2x+1 nhan gia tri nguyen
tim so tu nhien n chi co 2 thua so nguyen to biet rang n^2 co 21 uoc so hoi n^3 co bao nhieu uoc so