For 2>0 and aşr, what are the eigenfunctions of the following diferential cquation y +y=0, for the boundary conditions (0) =0, y(r) =07 lc.u.-2017] ) ccos (m) +

For 2>0 and AşR, what are the eigenfunctions of the following diferential cquation y +y=0, for the boundary conditions (0) =0, y(r) =07 LC.U.-2017] ) Ccos (m) + Ca sin (rx) d) Ccos (2n-)x+C sin (2n-1)x