Assignment:
Find the number of elements in A1 U A2 U A3 if there are 100 elements in A1, 1000 in A2, and 10000 in A3 if
a) A1 is subset of A2 and A2 is subset of A3.
b) The sets are pairwise disjoint.
Provide complete and step by step solution for the question and show calculations and use formulas.