Question

Dados log 2 = 0,30 e log 7 = 0,85, determine:​

Answer 1

e) $\log \sqrt{2}=$

$\log 2^{\frac{1}{2} }=$

$\frac{1}{2}.\log2=$

$\frac{\log2}{2}=$

$\frac{0,30}{2}=$

$\frac{3}{20}$

f) $\log_27=$

$\frac{\log7}{\log2}=$

$\frac{0,85}{0,30}=$

$\frac{85}{30}=$

$\frac{17}{6}$

g) $\log_{49}32=$

$\frac{\log32}{\log49}=$

$\frac{\log2^5}{\log7^2}=$

$\frac{5\log2}{2\log7} =$

$\frac{5(0,30)}{2(0,85)}=$

$\frac{1,5}{1,7}=$

$\frac{15}{17}$