Question

Sabendo - se que logx a =8, logx b=2 e logx c=1, calcular:logx a3/b2 x c4

Answer 1

log de a^3/b^2.c^4 na base x= 
log de a^3 na base x- (log de b^2 na base x + log de c^4 na base x)=
3log de a na base x- (2log de b na base x + 4 log de c na base x)=
3.8-(2.2+4.1)=
24-(4+4)=
24-8=
16