.Set both terms to zero: 2 a2+ 8m E 1 2a =0 h2 2 a2+ 8m E=0 2e2mx 2- 2a=0 h2 2 2 8m emat 1 E 0= h2 -a2 nto ao -h2a2 E 8ma2 e'mr 1 .Now set a h2to ao E -e2 -h2 e'm22 -e"m E- 8neoao 8m2 8h2e。2 -9Set both terms to zero: α2 + 8mπ2 h2 E = 0 E = −h2 α2 8mπ2 8mπ2 h2 E = −α2 h 2 α 2 + 8 m π 2 h 2 E         + 1 r 2 e 2 m π - 2 α        = 0 εo h 2 2 e 2 m π - 2 α = 0 εo α = e 2 m π h 2 = 1 a εo 0 • Now set α = e 2 m π h 2 = 1 a 0 εo E = -h 2 8 m π 2 e 4 m 2 π 2 h 4 = 4 εo 2 - e m h 2 εo 2 E 8 = -e 2 a 8πεo 0 III-9