Use the K-map method to find the minimized product of sums expressions for the following Boolean functions:
a. f(A, B, C) = (A- B). C Notice that (A- B = A + B) b.
f(A,B,C,D) = Σm,(1, 2, 4, 5, 10, 14)+ Σdị(0,6, 13, 15)
Where Σd2(...) means the sum of minterms that correspond to don't care outputs.