Multiple choice

Let f (w, x, y, z) = $\sum$(0,4,5,7,8,9,13,15). Which of the following expressions is/are NOT equivalent to f?

P. x’y’z’ + w’xy’ + wy’z + xz Q. w’y’z’ + wx’y’ + xz R. w’y’z’ + wx’y’ + xyz + xy’z S. x’y’z’ + wx’y’ + w’y

  1. P only

  2. Q and S

  3. R and S

  4. S only

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation