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Exam Questions Papers - Engineering

Q1:

Which of the following terms are equivalent?
  1. A ⊕ B ⊕ C
  2. A ⊕ B ⊙ C
  3. A ⊙ B ⊕ C
  4. A ⊙ B ⊙ C

A 1 and 4; 2 and 3

B 1 and 3

C 2 and 3

D 1, 2 and 4

ANS:A - 1 and 4; 2 and 3

A ⊕ B ⊕ C = A (B ⊕ C) + A(B ⊕ C) = A(B ⊙ C) + A (B ⊙ C) = A ⊙ B ⊙ C A ⊕ B ⊙ C = A (B ⊙ C) + A(B ⊙ C) = A(B ⊕ C) + A(B ⊕ C) = A ⊙ B ⊙ C.