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FGV - SP ) A matriz A é do tipo 5x7 e a matriz B, do tipo 7x5. Assinale a alternativa correta.
Escolha uma opção:
a. A matriz (AB) 2 tem 625 elementos
b. A matriz BA tem 25 elementos
c. A matriz AB tem 49 elementos
d. A matriz (BA) 2 tem 49 elementos
e. não é possível
Sagot :
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