Two Sums, One Universe
Difficulty: Easy · Topics: Discrete Mathematics, Sets, Complements
A and B are subsets of the universal set E and
n(A)+n(B')=11
n(A')+n(B)=7
How many elements does the universal set have?
Difficulty: Easy · Topics: Discrete Mathematics, Sets, Complements
A and B are subsets of the universal set E and
n(A)+n(B')=11
n(A')+n(B)=7
How many elements does the universal set have?