Question

Qual é o valor aproximado de log 8, considerando que log 2 = 0,30:
(a) 0,70
(b) 0,09
(c) 0,60
(d) 0,90​

Answer 1

$\large\boxed{\begin{array}{l}\sf \ell og8=\ell og2^3=3\cdot \ell og2\\\sf \ell og8=3\cdot0,30\\\sf\ell og8=0,90\\\huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~d}}}}\end{array}}$