Question

adotando log 2 = 0,3010 e log 6 = 7782, calcule o valor de log 75

Answer 1

Oi

log(2) = 0.3010 , log(6) = 0.7782

log(3) = log(6/2) = log(6) - log(2)
log(3) = 0.7782 - 0.3010 = 0.4772

log(5) = log(10/2) = log(10) - log(2) = 1 - 0.3010 = 0.6990

75:3
25:5
  5.5
  1 

75 = 3*5^2 

log(75) = log(3) + 2log(5)

log(75) = 0.4772 + 2*0.6990 = 1.8752 

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