taipanu99 taipanu99

26-10-2018
Mathematics

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pe multimea numerelor reale se defineste legea de compozitir asociativa data de x * y = x + y -2
a) calculati 5 * (-5)
b) aratati ca legea de compozitir * este comutativa
c) calculati (-3) (-2)(-1)0123

Respuesta :

michaelfinley78 michaelfinley78

26-10-2018

b) aratati ca legea de compozitir * este comutativa

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