Question 1180613



{{{f(x)= (ln(x))^3}}}

Find {{{f}}}'{{{(x)}}}



{{{(d/dx)((ln(x))^3)}}}...apply chain rule


={{{(3ln^2(x) )(d/dx) (ln(x))}}}


={{{(3ln^2(x) ) (1/x)}}}


{{{f}}}'{{{(x) = (3ln^2(x) )/x }}}