$($a$)x=AB+\frac{B}{b}ar(C)D\frac{+}{b}ar\frac{A}{b}ar(B)$

Excucise $5\mathrm{.}5$

$($b$)Y=AB+BD$

$($c$)Z=A+B+C+D$

Exercise $5\mathrm{.}52$ Implement the functions from Exercise $5\mathrm{.}51$ using a $483$ PLA. You may use dot notation.