題組內容

3. Find the extrema (local maxima or minima) of the following functions or functionals.

(3) (計算題10%Ui th Ele-agn qutionfi the function f(x) that achieves an extremum of a functional I [f(.)] = 61bae8ad5c855.jpgdx, with boundary conditions f(2) = 3 and f(5) = 9.