Consider the infinite cubical well, 0, oo, otherwise xa,0 y < a, 0 < z < a 0 v (r, y, ) where , y and z are three-dimensional cartesian coordinates, length unit a is a positive constant in (a) find the stationary states and the corresponding energies (b) list first 15 different energy values in order of increasing energy, that is, e, e2, . ej5. (c) mention the degeneracy of every energy value. note that the degeneracy of e14 is somewhat special. why is that?