Gate CS-2007 Question Paper With Solutions

Q. 47 Let f(w, x, y, z) = ∑(0, 4, 5, 7, 8, 9, 13, 15). Which of the following expressions are

NOT equivalent to f?

(A) P only

(B) Q and S

(C) R and S

(D) S only

Answer: (D)

Explanation: