# Introduction to Digital System Design

**Tutor description**

1. Practice finding dual and complement functions/circuit realizations. Draw an ANDOR circuit realization of each, and write sum-of-products expressions for the dual and complement functions. (a) F(X,Y,Z) = X•(Y′+Z) + X′•Y (AND-OR circuit only) = X•Y′′ + X•Z + X′′•Y

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