What are the Identity and Null matrix? And also Prove that (A-1)-1 = A if $$A=\begin{bmatrix} 1 & 2 \\\\ 3 & 8 \end{bmatrix}$$
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What are the Identity and Null matrix? And also Prove that (A-1)-1 = A if $$A=\begin{bmatrix} 1 & 2 \\\\ 3 & 8 \end{bmatrix}$$
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.