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

What is \( R \cap D \)?

R ∩ D = { 3 , 9 , 15 }

Answered by konrad509 | 2024-06-10

ANSWER
The elements in both sets is written as
R ∩ D = 3 , 9 , 15
EXPLANATION
The first set is
R={ 1 , 2 , 3 , 5 , 7 , 9 , 11 , 13 , 15 , 17 }.
The second equation is
D = { 3 , 6 , 9 , 12 , 15 , 18 , 21 , 24 , 18 , 27 }.
The intersection of the two sets denoted by R ∩ 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 ∩ D = 3 , 9 , 15
Note that when there is no element in common to both sets, then the intersection is the null set, { ∅ }.

Answered by kudzordzifrancis | 2024-06-11

The intersection of the sets R and D is R ∩ D = { 3 , 9 , 15 } . These elements are common to both sets. This process helps identify shared members between the two sets.
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Answered by kudzordzifrancis | 2024-10-01