Find 'X' in the circuit below : f1(A, B, C, D) = Î£(6, 7, 13, 14); f2(A, B, C, D) = Î£(3, 6, 7); f3(A, B, C, D) = Î£(5, 6, 7, 14, 15)

Find 'X' in the circuit below :

14-02-20

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.