Here's the question you clicked on:
Kylo744
Find C intersection D. C: {3, 6, 9, 12, 15, 18} D: {numbers divisible by 2 from 1 to 20} {2, 4, 6, 8, 10, 12, 14, 16, 18, 20} {6, 12, 18} {2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20} { }
\( C \cap D \) means the set that contains all members of C which are also present in D. Since D={2,4,6,8,10,12,14,16,18,20} can you find \( C \cap D \)?
The intersection of two sets is a set containing all elements present in both sets. You already have set C written out. Now think of what numbers are in set D. Then figure out which ones are in both sets.
Do you see which numbers are in set C?