1 votes 1 votes Which of the following boolean expression is not equal to the other three? $x' \oplus y$ $xy+x'y'$ $x' \oplus y'$ $x \oplus y'$ Digital Logic go2025-digital-logic-1 boolean-algebra + – gatecse asked Jul 19, 2020 • edited Jul 19, 2020 by Lakshman Bhaiya gatecse 149 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 3 votes 3 votes $x' \oplus y = x \oplus y' = (x \oplus y)' = xy+x'y'$ So, correct answer is $C.$ $\textbf{Note: }(x \odot y)' = x \oplus y$ $x' \odot y = x \odot y' = (x \odot y)' = xy' + x'y$ gatecse answered Jul 19, 2020 • selected Jul 22, 2020 by Lakshman Bhaiya gatecse comment Share Follow See all 0 reply Please log in or register to add a comment.