Question

Dados log 2=0,30; log 3=0,48; log 5=0,70 e log e=0,43, resolva as equações:
a) e^x-6=0
b)3^x =10

Answer 1

b) log 3ˣ = log 10 ⇔ x.log 3 = 1 ⇒ x = 1/log 3 ⇒ x = 1/0,48 logo x= 2,0833...