Skorzystamy ze wzoru:
[tex]\log_ab^c=c\log_ab[/tex]
Zatem
[tex]\frac{1}{2}\log_55^5=\frac{1}{2}*5\log_55=\frac{1}{2}*5*1=\frac{5}{2}=2\frac{1}{2}[/tex]
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Skorzystamy ze wzoru:
[tex]\log_ab^c=c\log_ab[/tex]
Zatem
[tex]\frac{1}{2}\log_55^5=\frac{1}{2}*5\log_55=\frac{1}{2}*5*1=\frac{5}{2}=2\frac{1}{2}[/tex]