If \( A \) is a nonsingular matrix such that \( A A^{T}=A^{T} A \)
and \( B=A^{-1} A^{T} \), the.... VIDEO
If \( A \) is a nonsingular matrix such that \( A A^{T}=A^{T} A \)https://bit.ly/YTAI_PWAP https://www.pw.live
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\begin{array}{l}
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x+3 y+2 z=b
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