Răspuns:
(a, b) d.p. (2, 5) ⇒ [tex]\frac{a}{2} =\frac{b}{5}[/tex] ⇒ [tex]b=\frac{5a}{2}[/tex]
[tex]\frac{3a+4b}{5a+2b} =\frac{3a+4\frac{5a}{2} }{5a+2\frac{5a}{2} } =\frac{3a+2*5a}{5a+5a} =\frac{13a}{10a}= \frac{13}{10} =1,3[/tex]
Explicație pas cu pas:
