Resposta :
log 30 = log (2.3.5)
log (a.b) = log a + log b
log (2.3.5) = log 2 + log 3 + log 5
log 30 = 0,301 + 0,477 + 0,699
log 30 = 1,477
log 30 = log (2.3.5)
log (a.b) = log a + log b
log (2.3.5) = log 2 + log 3 + log 5
log 30 = 0,301 + 0,477 + 0,699
log 30 = 1,477