Do the following two parts:
(a) Find the sum-of-products expansion of the Boolean function (, x, y, z) that has the value 1 if and only if an odd number of , x, y, and z have the value 1.
(b) Find a Boolean product of Boolean sums of literals that has the value 0 if and only if x = y = 1 and z = 0, x = z = 0 and y = 1, or x = y = z = 0.
