GATE | CS | 2017 | Set 2 | Digital Logic | Boolean Algebra | Question 44

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If w, x, y, z are boolean variables, then which of the following in INCORRECT?

wx + w(x+y) + x(x+y) = x + wy

(wx'(y + z'))' + w'x = w' + x + y'z

(wx'(y + xz') + w'x')y = xy'

(w + y)(wxy + wyz) = wxy + wyz

This question is part of this quiz :

GATE-CS-2017 (Set 2),Digital Logic GATE CS PYQ Quiz,Boolean Algebra PYQ QUIZ GATE CS
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Digital Logic
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