Complement of the expression A’B + CD’ is _________
A. (A’ + B)(C’ + D)
B. (A + B’)(C’ + D)
C. (A’ + B)(C’ + D)
D. (A + B’)(C + D’)
Answer:B
Complement of the expression A’B + CD’ is _________
A. (A’ + B)(C’ + D) B. (A + B’)(C’ + D) C. (A’ + B)(C’ + D) D. (A + B’)(C + D’)
Explanation: (A’B + CD’)’ = (A’B)'(CD’)’ (By DeMorgan’s Theorem) = (A” + B’)(C’ + D”) (By DeMorgan’s Theorem) = (A + B’)(C’ + D).