Question

Log2=0,30 e log3=0,48, então, quanto vale log120?

Answer 1

log 120 = log 12*10


= log 12 + log 10

=log 4*3 +log 10

=log 4  + log 3 + log 10

=log 2²  + log 3 + log 10

= 2* log 2  + log 3 + log 10

=  2*0,3+0,48+1   =   2,08

Answer 2

log120=log12*10
2*log2+log3+log10
2*(0,3)+0,48+1
0,6+0,48+1
1,08+1
2,08