Question

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Answer 1

Resposta:

Log120= log(2.60)

log120=log2+log60

log60=(2.3.10)

log60=log2+log3+1

log120=0,30+0,30+0,47+1

log120=2,07

b) log13,5=log(135/10)

log13,5=log135-1

log135=log(5.27)

log135=log5+log27

log135=0,70+log27

log27=log(3².3)

log27=log3³

log27=3log3

log27=3.0,47=1,41

log13,5= 0,70+1,41-1

log13,5=1,11