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daca {a,b,c} sunt direct proportionale cu {6,4,3} ,aflati m,n apartin N* astfel ca 2a=m x b =n x c .
PLSSS !!


Răspuns :

[tex]\{a,b,c\}d.p.\{6,4,3\}=\ \textgreater \ \frac{a}{6}=\frac{b}{4}= \frac{c}{3} =k\\a=6k,b=4k,c=3k\\2a=mb=nc\\2\cdot6k=m\cdot4k=n\cdot3k|:k\\12=4m=3n\\m=3,n=4[/tex]