Question

sabendo que log2=a e log3=b, calcule em funcão de a e b

a) log6
b)log1,25
c)log5
d)log 30
e) log 1/4
f) log72
g) log0,3
h)log raiz cubica de 1,8
i) log0,024
j)log0,75
k) log20000

Answer 1

Resposta:

log20000=

log(2 . 10 ^4)=

log2+4 log10 ^4=

log2+4 . log 10=----------> log10 =1

a + 4