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Exam Questions Papers - Engineering

Q1:

The circuit below represents function X(A, B, C, D) as:

A Σ(5, 8, 13, 14)

B ∏(0, 1, 2, 3, 4, 6, 7, 8, 10, 11, 12)

C Σ(5, 9, 13, 14)

D ∏(0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 15)

ANS:C - Σ(5, 9, 13, 14)

X = A B C(0. D + 0.D) + A B C(0.D + 0.D) + A B C(0.D + 1.D) + A B C(0.D + 0.D) + A B C(0.D + 0.D) + A B C(0.D + 1.D) + ABC(1.D + 0.D) = ∑(5, 9, 13, 14).