Question

Sabendo que log5na base 6=0,9 e log2na base 6=0,4,calcule log 2,5 na base 6

Answer 1

$log_62=0,4\\log_65=0,9\\log_62,5=x\\\\log_6(\frac{25}{10})=x\\\\log_6(\frac{5}{2})=x\\\\log_65-log_62=x\\0,9-04=x\\x=0,5$

Vale 0,5!