40. (Continued)

DISTRIBUTIVE LAW

To obtain a 1 output from the Boolean expression A(B+C), input A must be at the 1 level, as

well as either input B or input C. In the Boolean expression A(B+C), there are two

combinations of variables which will produce a 1 output: AB or AC. Therefore, A(B+C) =

AB+AC. When an expression takes the form of A(B+C) or AB+AC, it can be converted to

the opposite form by using the DISTRIBUTIVE law.

A(B+C) = AB+AC

AB+AC = A(B+C)