1)

1.1)  [(x + y + z')(x' + y + z) y']' = (x' y' z) + (x y' z') + y

1.2)  {[(x y' z) + (x y z) + (x' y')] y}' = [(x' + y + z') (x' + y' + z') (x + y)] + y'

2)

2.1) 


2.2)




3)

F = x y' z' + x y' z + x y' z' + x y z'
  = x y'(z + z') + x z'(y' + y)
  = x y' 1 + x z' 1
  = x y' + x z'

4)

F = A + B' C

A = A(B + B') 
  = A B + A B' 
  = A B(C + C') + A B'(C +C') 
  = A B C + A B C' + A B' C + A B' C

B' C = B' C (A + A')
     = B' C A + B' C A' = A B' C + A' B' C

=> F = A B' C = A B C + A B C' + A B' C + A B' C + A B' C + A' B' C
              = A B C + A B C' + A B' C + A B' C + A' B' C
			  = m7    +  m6    +  m5    +   m4   +   m1
			  = SUM(7, 6, 5, 4, 1)