Suppose R = {1, 3, 5, 7, 9, 11, 13, 15, 17} and D = {3, 6, 9, 12, 15, 18, 21, 24, 27}. What is R ∩ D? (

Question

asked Sep 2, 2015 212k views

2 Answers

Jroonk · Answer 1 · 2015-09-06T19:04:43+0000

ANSWER

The elements in both sets is written as

$R\cap D=$
3,9,15

Step-by-step explanation

The first set is

R={
1,2,3,5,7,9,11,13,15,17 }.

The second equation is

{
3,6,9,12,15,18,21,24,18,27 }.

The intersection of the two sets denoted by
$R\cap D$ are the elements that are found in set R that are also in set D.

These elements are 3,9 and 15.

So we write

$R\cap D=$
3,9,15

Note that when there is no element in common to both sets, then the intersection is the null set, {
$\emptyset$ }.