Question

spunetimi va rog cum se calculeaza 3-lg8

Answer 1

3=lg 1000
lg1000-lg8= lg(1000÷8)=lg125

Answer 2

Sau in cealata forma
$3-lg8=3-lg{8}=3-lg{2^{3}}=3-3lg{2}=3(1-lg{2})$