Question 1

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Dada la matriz A equals open parentheses table row 1 2 1 row cell negative 1 end cell cell negative 2 end cell cell negative 1 end cell row cell negative 3 end cell cell negative 2 end cell cell negative 4 end cell row 1 cell negative 2 end cell cell negative 4 end cell end table close parentheses, marca las afirmaciones que sean ciertas:
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