Find all the the prime implicants for the following Boolean functions, and determine which are essential:
a. F (w, x, y, z) (0,2,4, 5,6,7,8, 10, 13, 15)
b. F (A, B, C, D,- (0, 2, 3, 5, 7, 8, 10, 11, 14, 15)
c. F(A,B,C,D)-Σ(2, 3, 4, 5, 6, 7, 9, 11, 12, 13)
d. F (w,x, y,z) 21,3,6,7,8,9, 12, 13, 14, 15)
e. F(A, B, C, D)=Σ(0, l, 2, 5, 7, 8, 9, 10, 13, 15)
f. F(w, x, y, z)-Σ(0, 1, 2, 5, 7, 8, 10, 15)
