If \( A=[a i j]_{4 \times 4} \) such that \( a i j=\left\{\begin{array}{ll}\angle, & l=J \\ 0, &.... VIDEO
If \( A=[a i j]_{4 \times 4} \) such that \( a i j=\left\{\begin{array}{ll}\angle, & l=J \\ 0, & i \neq j\end{array}\right. \), thenhttps://bit.ly/YTAI_PWAP https://www.pw.live
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