Find the complement of the following Boolean function : F1 = AB’ + C’D’
(AB’ + C’D’)’ = (AB’)’.(C’D’)’ (De Morgan’* first theorem)
= (A’ + B’’).(C’’ + D’’) (DeMorgan’* second theorem i.e., (A.B)’= A’+ B’)
= (A’ + B’).(C + D) ((X’)’= X)
