Question

If C = {integers divisible by 2 from 1 to 20} and D = {integers divisible by 6 from 1 to 25}, what is C ∩ D?

Answer 1

find the elements in C that are also in D...

Answer 2

so is it whats in common or all of them together ?

Answer 3

well C= { 2, 4, 6, 8, 10, 12, 14, 16, 18, 20} and D = {6, 12, 18, 24}

the common elements are the intersection...

Answer 4

so the answer is just {6, 12, 18, 24} then right ?

Answer 5

not 24 as its not in set C

Answer 6

oh alright so its 6 12 18

Answer 7

yep... use the correct notation and its all perfect..

Answer 8

ok thanks for helping