Question

Considerando log2=0,3, log3=0,5 e log5=0,7, determine o valor de: d) log1,2

Answer 1

log1,2= log(12/10 ) > log1,2= log12 - log10 > log1,2= log(3.4) - log10 > log1,2= log3 +log4 - log10 > log1,2= log3 + 2log2 - log10 > log1,2= 0,5+ 2.0,3 - 1 > log1,2= 0,5+0,6-1 > log1,2= 0,1

Answer 2

Se log2=0,3 - Log3=0,5 e Log5=0,7   logo  Log1,2 = 0,1