Let A=[ 5,6,7,8] and B=[ 6,8,10,12]

Question

Find A∩B

Answer 1

A ∩ B reads as "A intersection B.  It merely asks what elements the two sets have in common.

 

{5,6,7,8} ∩ {6,8,10,12} = {6,8} because those are the elements that exist in both original sets.

Answer 2

We can draw the Venn diagram and see that

A^B = 6,8