f = xy+wy //sop form
f can be expressed in any number of sop or pos form.
like y(x+w) is one of pos form
(w+x)(w’+y)(x’+y) is other pos form
All three expression are equal...
xy+wy=y(x+w)=(w+x)(w’+y)(x’+y)
a)xy+wy
b)y(x+w)=xy+wy
c)After minimizing reduced to xy+wy
Ans: D