Question

calcule o valor de x usando,em cada caso,as prioridades operstorias: a)logx = log2 + log5 + log6 b) 4 • logo = log2 + log8 c) log + log2 = log36 - log 6

Answer 1

a) logx = log2 + log5 + log6 ⇒ logx´= log2.5.6 ⇒ logx = log60 ⇒ x = 60
b) 4.logx = log2 + log8 ⇒ logx⁴ = log2.8 ⇒ logx⁴ = log16 ⇒ x = 2
c) logx + log2 = log36 - log 6 ⇒ log2x = log36/6 ⇒ log2x = log 6 ⇒ 2x = 6 ⇒ x = 3