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## edr1c this is an extract from a textbook on power system analysis. when transferring to the phase domain, what does the a and a^2 represent in the matrix? one year ago one year ago

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1. edr1c

$\left[\begin{matrix}1 & 1 &1 \\ 1 & a ^{2} & a\\ 1 & a & a ^{2}\end{matrix}\right]$