Show that the wavefunctions psi =sin(pi (x)/(L)) and psi =sin(2pi (x)/(L)) are orthogonal, where x is the
position of a particle in a box of length L.
Show that the wavefunctions w=sin(rx/L) and w=sin(2rix/L) are orthogonal, where x is the
position of a particle in a box of length L.