$1.$Use K$-$maps to find the minimal SOP and POS expressions for each of the following logic functions. Indicate

the distinguished $1-$cells in each map. Show all the possible solutions in each case.

a$)F=pro{d}_{W,x,Y}(0,1,3,4,5)$

b$)F={\displaystyle \underset{A}{\overset{?}{}}},B,C,D(1,4,5,7,12,14,15)$