11 Obtención de ayuda......................................................................................... 39
solución convergente........................................................................................... 43
4
....................................................................................................... 32
..................................................................................................34
.......................................................................................................................34
............................................................................................................35
.......................................................................................37
........................................................................................................... 38
................................................................................................ 39
......................................................................................................... 39
....................................................................................................... 43
.......................................................................................................... 48
........................................................................ 28
............................................................................... 35
......................................................................35
............................................................................. 35
................................................................................36
........................................................................ 37
........................................... 38
.................................................................. 39
................................................ 41
................................................................ 43
................................................. 47
.......................................................................48
................................................................................48
................................. 41
.........................................48