If A and B are disjoint non-empty sets, then A–(A–B) is
If sets A and B are defined as A={(x,y)|y=1x,x≠0, x ϵ R},B={(x,y)|y=−x, x ϵ R}, then
If the sets A and B are defined as A = {(x, y) : y = ex, x ∈ R};
B = {(x, y) : y = x, x ∈ R}, then