Chapter 4.3, Problem 1CU

(a)

Program Plan Intro

To apply the DE Morgan’s theorem to the expression $\overline{\text{ABC}}\text{+(}\overline{\overline{\text{D}}\text{+E}}\text{)}$

(b)

Program Plan Intro

To apply the DE Morgan’s theorem to the expression $\overline{\text{(A+B)C}}$

(c)

Program Plan Intro

To apply the DE Morgan’s theorem to the expression $\overline{\text{A+B+C}}\text{+}\overline{\overline{\text{D}}\text{E}}$