Electronics and Communication Engineering - Exam Questions Papers - Discussion

16.

Find 'X' in the circuit below :

f₁(A, B, C, D) = Σ(6, 7, 13, 14);
f₂(A, B, C, D) = Σ(3, 6, 7);
f₃(A, B, C, D) = Σ(5, 6, 7, 14, 15)

Answer: Option C

Explanation:

f₁(A, B, C, D) = ∑(6, 7, 13, 14)

f₂(A, B, C, D) = ∑(3, 6, 7)

f₁ ⊕ f₂ = ∑(3, 13, 14)

f₃ x (f₁ ⊕ f₂) = ∑(14) = y

X = f₁ x y ⇒ ∑14.

Manikanta said: (Jun 25, 2016)
Here, X = (f1 + y')' = 0.

Jeet said: (Jul 19, 2016)
I also think that the answer is '0'.

Hari said: (Jul 2, 2017)
Cam someone explain it clearly?

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