Question

If C = {2, 3, 4, 5} and D = {numbers divisible by 2 from 1 to 10}, what is C ∩ D? answers are {2,4,6,8,10} or {2,4} or {2,3,4,5,6,8,10} or {} but im guessing its the 3rd one but i want to know if i picked the right answer

Answer 1

Well, first how about you write out D explicitly? Write out the set of all numbers divisible by 2 from 1 to 10. Then see if you can take the intersection of C and D, that is, all numbers that are in both sets.