1.

Convert the following expression to canonical Sum-of = Product form :(a)  X + X’Y + X’Z’(b)  YZ + X’Y

Answer»

(a)  X + X’Y + X’Y’ 

= X(Y + Y’)(Z + Z’) + X’Y(Z + Z’) + X’Z’(Y + Y’) 

= (XY + XY’)(Z + Z’) + X’YZ + X’YZ’ + X’YZ’ + X’Y’Z’ 

= Z(XY + XY’) + Z’(XY + XY’) + X’YZ + X’YZ’ + X’YZ’ + X’Y’Z’ 

= XYZ + XY’Z + XYZ’ + XY’Z’ + X’YZ + X’YZ’ + X’YZ’ + X’Y’Z’ 

By removing duplicate terms we get canonical Sum-of=Product form : 

XYZ + XY’Z + XYZ’ + XY’Z’ + X’YZ + X’YZ’ + X’Y’Z’

F = ∑(1, 2, 3, 4, 5, 6, 7)

F = m1 + m2 + m3 + m4 + m5 + m6 + m7 

(b)  YZ + X’Y 

= YZ(X + X’) + X’Y(Z + Z’) 

= XYZ + X’YZ + X’YZ + X’YZ’ 

By removing duplicate terms we get canonical Sum-of=Product form : 

XYZ + X’YZ + X’YZ’ 

F = ∑(2, 3, 7)

F= m2 + m3 + m7



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