Question

For all sets A and B. (A-B) U (
A n B) = A ​

Answer 1

Answer:

Step-by-step explanation:

logical method

a-b = only elements of a

union with

anb= elements  in a and in b both

only a+(a+b) elements = a

mathematical method

n(a-b)union(anb) =n(a)-n(anb)+n(anb)

=n(a) = elements in a