Solved: The Determinant of a Scalar Multiple of a Matrix In Exercises 714, use the fact
Chapter 3, Problem 12(choose chapter or problem)
In Exercises 7–14, use the fact that \(|c A|=c^{n}|A|\) to evaluate the determinant of the \(n \times n\) matrix.
\(A=\left[\begin{array}{rrr}
40 & 25 & 10 \\
30 & 5 & 20 \\
15 & 35 & 45
\end{array}\right]\)
Text Transcription:
|cA| = c^n |A|
n times n
A=[40 25 10
30 5 20
15 35 45]
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