If A = {x, y) | x2 + y2 = 25} and B = {x, y) | x 2 + 9y2 = 144} then BA ∩ contains :

If A = {x2 + y2 = 16} and B = {9x2 + 25y2 = 225}.Then n(A ∩ B) is equal to

Let A = {x ∈ N : 2 < x < 9} and B = {x ∈ N : 5 ≤ x < 14}. Find A ∩ B?

Let Z be the set of all integers andA = {(x, y); x4 – y4 = 175, x, y ∈ Z}B = {(x, y); x > y, x, y ∈ Z}Then, the number of elements in A ∩ B is

For disjoint sets A and B, n(A) = 3 and n(B) = 5 then n(A ∩ B) is

If B = {x,y}. Find B x B