Two 2's complement number having sign bits X and Y are added and the sign bit of the result is Z. then, the occurrence of overflow is indicated by the Boolean function.

Two 2's complement number having sign bits X and Y are added and the s

1.	Two 2's complement number having sign bits X and Y are added and the sign bit of the result is Z. then, the occurrence of overflow is indicated by the Boolean function.
Answer» carry of a one bit full order is given by expression XY + YZ + ZX.