Use the expanded function to show how y can be implemented

Question

(a) Use Shannon's expansion theorem around a for the function

so that it can be implemented using four-variable functions.

(b) Use the expanded function to show how Y can be implemented using one Figure 6-3 logic block. Mark (highlight) the input signals and the activated paths on a copy of Figure 6-3.

(c) Give the contents of the three LUTs.