Question

Simplify the following expression using boolean theorem :

Answer 1

A'A=0

AA=A

BB'=0

AB'+AB'=AB'

1+B=1

1+B'=1

so

A'(A+B)+(B+AA)(A+B')

=A'B+BA+A+AB'

=AB'+A(1+B)

=AB'+A

=A(1+B')

=A

HOPE THIS HELPS

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i had my CS exam a few days ago......so proved out to be helpful for someone though not for me during the exam...LOL