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stiind că a×b=6pe7 si c=14pe3 calculați a×(b×c)

Răspuns :

a*b=6/7
c=14/3
a*(b*c)=a*b*c=6/7 *14/3=6*14/7*3=84/21=4

[tex]a*(b*c)= a*b*c = \frac{\not 6}{\not 7}* \frac{\not14}{\not3} \to \frac{2}{1} * \frac{2}{1} \longrightarrow \boxed{4}[/tex]