Question

13) Se log2=0,30; log3=0,48 e log7=0,84. Determine o valor de
a) log5

Answer 1

$\log _{ }\left(5\right)=\log _{ }\left(\frac{10}{2}\right)=\log _{ }\left(10\right)-\log _{ }\left(2\right)=1-0,30=0,70$