Question

If C = {2, 4, 6, 8, 10, 12, 14, 16} and D = {numbers divisible by 4 from 1 to 20}, what is C ∩ D?

{2, 4, 6, 8, 10, 12, 14, 16, 20}

{4, 8, 12, 16, 20}

{ }

{4, 8, 12, 16}

Answer 1

C={2,4,6,8,10,12,14,16}
D={4,8,12,16,20}
C n D means you are looking for the numbers or elements that they have in common
C n D ={4,8,12,16}

Answer 2

thank you(:

Answer 3

4 is in C n D since it is in C and is in D
8 in in C n D since it is in C and is in D
and so...

Answer 4

np