Răspuns :
[tex]2,5^n=\frac{125}{8}[/tex]
[tex](\frac{5}{2})^n=\frac{125}{8}[/tex]
[tex]\frac{5^n}{2^n}=\frac{125}{8}[/tex]
[tex]n=3[/tex]
[tex](\frac{5}{2})^n=\frac{125}{8}[/tex]
[tex]\frac{5^n}{2^n}=\frac{125}{8}[/tex]
[tex]n=3[/tex]
(2,5)^n=125/8
(25/10)^n = (5)^3/(2)^3
(25/10)^n = (5/2)^3
(25/10) se simplifica cu 5 si avem
(5/2)^n = (5/2)^3
deci n = 3
(25/10)^n = (5)^3/(2)^3
(25/10)^n = (5/2)^3
(25/10) se simplifica cu 5 si avem
(5/2)^n = (5/2)^3
deci n = 3