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_intersect_D
R_intersect_D is the intersection of sets R and D. To find the intersection, we need to identify the elements that are common to both sets.
In this case, the common elements between R and D are 3 and 15.
Therefore, R_intersect_D = {3, 15}.