Question 466289
prove that 
{{{log(3,64)/log(9,8) = 4}}}
You can do this with a calculator:
{{{log(3,64) = log(64)/log(3)}}} etc
or recognize that 9 = 3^2 and {{{log(9,8) = log(3,sqrt(8))}}}
and {{{log(64)/log(sqrt(8)) = 4}}} since {{{64 = (sqrt(8))^4}}}