Consider A = {2x + 1: 5 ≤ x ≤ 10 and x ∈ I} and B = { 2x - 3 : 5 ≤ x ≤ 10 and x ∈ I}. Find A Δ B (A symmetric difference B)
A = {11, 13, 15, 17, 19, 21}
B = {7, 9, 11, 13, 15, 17}
AΔB = (A ∪ B) – (A∩B)
A ∪B = {7, 9, 11, 13, 15, 17, 19, 21}
A∩B = {11, 13, 15, 17}
AΔB = {7, 9, 19, 21}