Differential Equations and Linear Algebra (4th Edition)

Published by Pearson
ISBN 10: 0-32196-467-5
ISBN 13: 978-0-32196-467-0

Chapter 4 - Vector Spaces - 4.4 Spanning Sets - Problems - Page 282: 2

Answer

Yes.

Work Step by Step

We know that the determinant of a matrix \[ \left[\begin{array}{rr} a & b \\ c &d \\ \end{array} \right] \] is $D=ad-bc$. We know that if we choose $2$ of these vectors and the determinant of the matrix formed by the vectors is not $0$, then they span the plane. If we choose $(1,-1),(2,3)$, then $D=1\cdot3-(-1)2=3+2=5\ne0$.
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