Question

se log 268 = 2,42, o valor de log 2,68 é?

Answer 1

Se log 268 = 2,42, o valor de log 2,68 é?

log 2,68 = log 268 ==> log 268 - log 100
                       100

log268 - log 10² ==> log268 - 2log10 

2,42 - 2.1 ==> 2,42 - 2 ==> 0,42