0 votes 0 votes Digital Logic digital-logic + – manisha11 asked Feb 22, 2019 manisha11 391 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply srestha commented Feb 22, 2019 reply Follow Share here 4 NOR gates required $\left ( \left ( X_{1}+X_{3} \right )'+\left ( X_{2}+X_{3} \right )'+\left ( X_{4}+X_{3} \right )' \right )'$ 0 votes 0 votes BASANT KUMAR commented Aug 1, 2019 reply Follow Share question is asking about exclusive nor gate 0 votes 0 votes Please log in or register to add a comment.