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Ondorengo matrizeak emanik:

begin mathsize 14px style A equals open parentheses table row 1 2 row 2 3 end table close parentheses Y space space B equals open parentheses table row cell negative 3 end cell 2 row 2 cell negative 1 end cell end table close parentheses end style

Kalkulatu begin mathsize 14px style bevelled fraction numerator open parentheses A plus B close parentheses over denominator 2 end fraction end style

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