Resposta:
12450= 25475 *(1-0,05)^n
12450/25475 =(0,95)^n
log(12450/25475) = log (0,95)^n
log(12450/25475) = n * log (0,95)
n = log(12450/25475) / log (0,95)
n= -0,3109448412467088/ (-0,022276394711152233)
n ~ 13,9584903786 ~ 14 meses
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Resposta:
12450= 25475 *(1-0,05)^n
12450/25475 =(0,95)^n
log(12450/25475) = log (0,95)^n
log(12450/25475) = n * log (0,95)
n = log(12450/25475) / log (0,95)
n= -0,3109448412467088/ (-0,022276394711152233)
n ~ 13,9584903786 ~ 14 meses