Question

Considerando que loga 2 = 20 e loga 5 = 30, então o valor de loga 50 é:

Answer 1

loga 50
= loga (5².2)
= loga 5² + loga 2
= 2 . loga 5 + loga 2
= 2 (30) + 20
= 60 + 20
= 80

Answer 2

log  2 = 20
log  5 = 30
log 50 = ?
log 50 = log 2 . 5² = log 2 + log 5² = log 2 + 2 log 5 = 20 + 2 . 30 = 20 + 60 = 80