Question

Dados Log 3 =a, log 3=b, e log 10=1, calcule log 60

Answer 1

Primeiro fatorasse o 60
 
60  2
30 2
15 3
5   5
1

log60= log2 + log2+ log 3+ log 5  // //                  log5+log2=log10
log60= log10+log2+log3
log60= a+b+1

Answer 2

Log60 será; 

Log60 = log6.10 

Log6+log10 
Log6+1 
Log3.2+1
Log3+log2+1
a+b+1           SENDO: LOG3=A   LOG2 = B E LOG10=1

resposta: a+b+1