cho 2 so x;y la cac so nguyen sao cho :/x/ +/y/ = 2 so cap (x;y) thoa man la
cho x ; y la cac so nguyen to sao cho gia tri tuyet doi cua x cong gia tri tuyet doi cua y bang 5 so cap so nguyen (x;y) thoa man la
cho x, y , z la cac so nguyen thoa man x . y - x. z + y.z - z^2 +1 =0 chung minh rang x+ y =0
tim cac so nguyen to x,y thoa man:(x -2) nhan (y-3)=-4
tim cac so nguyen to x, y thoa man: (x - 2)2(y - 3)= -4
Cap so nguyen duong ( x,y ) thoa man |(x2 + 2).(y + 1)| = 9 la (x,y)=.....
(Nhap cac gia tri theo thu tu , cach nhau boi dau;)
Cho x;y la so nguyen sao cho | x | + | y | = 5. So cap so nguyen ( x;y ) thoa man la
Cho ( x0 ; y0 ) la cac so nguyen duong thoa man : ( x-2 ) ( 2y + 3 ) = 26
Khi do , x0 + y0 la
x,y la hai so nguyen to, x2+45=y2.tinh tong x+y