Orthogonal Matrices In Exercises 81 and 82, use a graphing utility to determine whether
Chapter 3, Problem 82(choose chapter or problem)
In Exercises 81 and 82, use a graphing utility to determine whether A is orthogonal. Then verify that \(|A|=\pm 1\).
\(A=\left[\begin{array}{rrr}
\frac{2}{3} & -\frac{2}{3} & \frac{1}{3} \\
\frac{2}{3} & \frac{1}{3} & -\frac{2}{3} \\
\frac{1}{3} & \frac{2}{3} & \frac{2}{3}
\end{array}\right]\)
Text Transcription:
|A|=pm 1
A=[2/3 -2/3 1/3
2/3 1/3 -2/3
1/3 2/3 2/3]
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