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▭\:\longdivision{▭} | \times \twostack{▭}{▭} | + \twostack{▭}{▭} | - \twostack{▭}{▭} | \left( | \right) | \times | \square\frac{\square}{\square} |
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▭\:\longdivision{▭} | \times \twostack{▭}{▭} | + \twostack{▭}{▭} | - \twostack{▭}{▭} | \left( | \right) | \times | \square\frac{\square}{\square} |
step-by-step
\det\begin{pmatrix}\frac{19}{21}&-\frac{4}{21}&\frac{8}{21}\\-\frac{8}{21}&-\frac{16}{21}&\frac{11}{21}\\\frac{4}{21}&-\frac{13}{21}&-\frac{16}{21}\end{pmatrix}
en
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