One-One Functions Between Sets (Jee Mains) | ExamDuo
Functions
Hard
One-One Functions Between Sets
Consider the sets A={(x, y) ∈ × : x2 + y2 = 25}, B = {(x, y) ∈ × : x2 + 9y2 = 144}, C = {(x, y) ∈ × : x2 + y2 ≤ 4}, and D = A ∩ B. The total number of one-one functions from the set D to the set C is: