If A=⎡⎢⎣101012004⎤⎥⎦, then show that |3A|=27|A|. – InterviewSolution

1.	If A=⎡⎢⎣101012004⎤⎥⎦, then show that \|3A\|=27\|A\|.
Answer» If $A = ⎡ ⎢ ⎣ \begin{matrix} 1 & 0 & 1 0 & 1 & 2 0 & 0 & 4 \end{matrix} ⎤ ⎥ ⎦$ , then show that $\| 3 A \| = 27 \| A \|$ .

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