Cho x;y la so nguyen sao cho | x | + | y | = 5. So cap so nguyen ( x;y ) thoa man la

a, co bao nhieu cap so nguyen ( x,y ) thoa man x + y=1

b. co bao nhieu cap so nguyen ( x,y ) thoa man x.2 + y =1

hai cap so nguyen to hon kem nhau 2 don vi goi la cap so nguyen to sinh doi. tim cac cap so nguyen to sinh doi nho hon 100

so cap so nguyen x,y thoa man dieu kien 3/x+y/3=5/6 la ... cap

so cac cap so nguyen x;y thoa man x+y+x*y = 3

cho 2 so x;y la cac so nguyen sao cho :/x/ +/y/ = 2 so cap (x;y) thoa man la

ki hieu [x] la so nguyen lon nhat khong vuot qua x .So nguyen x thoa man [7x-5/3]=-2

minh can gap dang thi cap truong

ki hieu [x] la so nguyen lon nhat khong vuot qua x .So nguyen x thoa man [7x-5/3]=-2

minh can gap dang thi cap truong

so cap so nguyen (x;y) thoa man (2x-5)(y-6)=17

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