Consider the following statements a half adder. As a half subtractor a – McqOptions

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1.	Consider the following statements a half adder. As a half subtractor alsohas two outputs CH = x x y and Sn = x ‚äï y for two inputs x and yhas two outputs CH = x + y and SH = x ‚äï y for two inputs x and yis a combinational circuit Which of the statements given above is/are correct?
A.	1, 3, 4
B.	1, 2, 4
C.	4 only
D.	2 and 3
Answer» C. 4 only

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