Question

find the complement of Boolean expression (A+B'+C)(A+B'C)​

Answer 1

Answer: a'.b.c' + a'.(b+c')

Explanation:

{(a+b'+c).(a+b'c)}'

= { (a+b'+c)' + ((a + (b'.c))' } [ apply demorgan law a'. b' = a' + b']

= { ( a'.b''.c' ) + ( a' .( b'.c)' ) } [ apply demorgan law again ]

= ( a'.b.c' ) + ( a'.(b''+c')) [ apply involution law a'' = a ]

= ( a'.b.c') + (a'.(b + c'))

Answer 2

Explanation:

The answer has been done in the picture step by step