Asked by Anonymous

suppose R ={1, 3, 5, 7, 9, 11, 15, 17} and D= {3, 6, 9, 12, 15, 18, 21, 24, 27}. what is RnD
Answered by Reiny
I assume you meant : R ∩ D

What numbers do you see that appear in both R <b>AND</b> D

list them in set notation.
Answered by AJ L
If by that "n" you mean ∩, it just means the datasets of the values of R AND D.
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