Discrete Mathematics and Its Applications, Seventh Edition

Published by McGraw-Hill Education
ISBN 10: 0073383090
ISBN 13: 978-0-07338-309-5

Chapter 2 - Section 2.6 - Matrices - Exercises - Page 185: 28

Answer

$\left[ {\begin{array}{*{20}{c}} 1&0\\ 1&1\\ 1&1 \end{array}} \right]$

Work Step by Step

$\begin{array}{l} A \odot B = \left[ {\begin{array}{*{20}{c}} 1&0&0&1\\ 0&1&0&1\\ 1&1&1&1 \end{array}} \right] \odot \left[ {\begin{array}{*{20}{c}} 1&0\\ 0&1\\ 1&1\\ 1&0 \end{array}} \right]\\ = \left[ {\begin{array}{*{20}{c}} {(1 \wedge 1) \vee (0 \wedge 0) \vee (0 \wedge 1) \vee (1 \wedge 1)}&{(1 \wedge 0) \vee (0 \wedge 1) \vee (0 \wedge 1) \vee (1 \wedge 0)}\\ {(0 \wedge 1) \vee (1 \wedge 0) \vee (0 \wedge 1) \vee (1 \wedge 1)}&{(0 \wedge 0) \vee (1 \wedge 1) \vee (0 \wedge 1) \vee (1 \wedge 0)}\\ {(1 \wedge 1) \vee (1 \wedge 0) \vee (1 \wedge 1) \vee (1 \wedge 1)}&{(1 \wedge 0) \vee (1 \wedge 1) \vee (1 \wedge 1) \vee (1 \wedge 0)} \end{array}} \right]\\ = \left[ {\begin{array}{*{20}{c}} {1 \vee 0 \vee 0 \vee 1}&{0 \vee 0 \vee 0 \vee 0}\\ {1 \vee 1 \vee 1 \vee 1}&{0 \vee 1 \vee 0 \vee 0}\\ {1 \vee 0 \vee 1 \vee 1}&{0 \vee 1 \vee 1 \vee 0} \end{array}} \right]\\ = \left[ {\begin{array}{*{20}{c}} 1&0\\ 1&1\\ 1&1 \end{array}} \right] \end{array}$
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