1. Show a block diagram of a system using AND, OR, and NOT gates to implement the following functions. Assume that variables are available only uncomplemented. Do not manipulate the algebra.

ab + c(a + b)

2. For each of the following circuits, i. find an algebraic expression. ii. put it in sum of product form

3. For each of the following circuits, i. find an algebraic expression. ii. put it in SOP form.

a