Question 835257
{{{log(sqrt(a/(b^3)))}}}
{{{log(sqrt(a)/sqrt(b^3)))}}}
{{{log(sqrt(a))-log(sqrt(b^3))}}}
{{{log(a^(1/2))-log((b^3)^(1/2))}}}
{{{log(a^(1/2))-log((b)^(3/2))}}}
{{{(1/2)*log(a)-(3/2)*log((b))}}}
now substitute 4 for log(a) and 2 for log(b)
{{{(1/2)*4-(3/2)*2}}}
{{{2-3}}}
{{{-1}}}