[10 points] Consider the limit L = lim (cos x) 1/72. (a) [2 points] Use a calculator and some small values of x to approximate L to four decimal places. (b) [8 points] Find L. Hint: First evaluate In(L). You may write (Form: 8 ) or (Form: to to indicate an indeterminate form that is suitable for L'Hopital's theorem. You may write - to indicate an equality arising from L'Hopital's theorem