Since we have the symbol â‹‚, we are looking for the intersection of the given sets.
A&={1,2,3,4}
C&={3,5,7,8}
An intersection of two sets is the set that contains elements that are common in both sets. An element is in the intersection of A and C if it belongs to A and C at the same time.
A&={ 1,2, 3,4}
C&={ 3,5,7,8}
A â‹‚ C &={ 3}