Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 8 - Section 8.1 - Matrix Solutions to Linear Systems - Exercise Set - Page 895: 62

Answer

Yes, the statement makes sense.

Work Step by Step

The provided statement makes sense. Example: Consider the system of equations: $\begin{align} & x+2y=4 \\ & 3x+6y=18 \end{align}$ The augmented matrix is, $\left[ \begin{matrix} 1 & 2 & 4 \\ 3 & 6 & 18 \\ \end{matrix} \right]$ Now we will reduce the matrix into row reduced echelon form by applying row operations. First apply ${{R}_{2}}\to {{R}_{2}}-3{{R}_{1}}$ $\left[ \begin{matrix} 1 & 2 & 4 \\ 0 & 0 & 18 \\ \end{matrix} \right]$ The reduced system of equations is, $x+2y=4$ .….. (I) $0=16$ …… (II) Equation (II) is absurd. Therefore, the given system has no solution. Hence, the provided statement makes sense.
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