Among the relations S = { (a,b):a,b in R - { 0},2 + frac{a}{b} > 0 } and T = { (a,b):a,b in R,a^{2} - b^{2} in Z }: Relation (Mathematics) Question | DivineJEE

Among the relations S = { (a,b):a,b in R - { 0},2 + frac{a}{b} > 0 } and T = { (a,b):a,b in R,a^{2} - b^{2} in Z }: Relation (Mathematics) Question | DivineJEE | divineJEE