33. Create the Kmaps and then simplify for the following functions (leave in sum-of-products form):

a) F(w, x, y, z) = w′x′y′z′ + w′x′yz′ + w′xy′z + w′xyz + w

′xyz′ + wx′y′z′ + wx′yz′

b) F(w, x, y, z) = w′x′y′z′ + w′x ′y′z + wx′y′z + wx′yz′ + wx

′y′z′

c) F(w, x, y, z) = y′z + wy′ + w′xy + w′x′yz′ + wx′yz′