22.
논리식 $Y = \bar{A}BC + AB\bar{C} + ABC$ 를 간단히 표현한 것은?
①
$\bar{A} \cdot (B+C)$
②
$B \cdot (A+C)$
③
$\bar{C} \cdot (A+B)$
④
$C \cdot (A+\bar{B})$