Question

dados log2= 0,30 e log3= 0,48 e log5= 0,85, determine:

a) log20
b)log0,0002
c)log0,3
d)log15
e)log250

Answer 1

a) log20=log(2*10)log2+log10=0,30+1=1,30

c)log0,3=log(3/10)=log3-lo10=0,48-1=0,52

e)log250=log(2*5^3)=log2+log5^3=log2+3*log5=0,30+3*0,85=2,85