Question

Suppose T= {-8,-4,0,4,8,12,16,20} and K= {-3,-2,-1,0,1,2,3,4,5,6}. What is T U K?

Answer 1

T U K  = { -8,-4, -3, -2, -1, 0, 1,2,3,4, 5,6,8,12,16,20}