Q33 , Q 34
http://s121.photobucket.com/albums/o204/hattypic/?action=view¤t=6099eada.jpg
Q33 see fig.1.12
http://i121.photobucket.com/albums/o204/hattypic/cbc5d8d3.jpg
Q34 see fig.1.13
http://i121.photobucket.com/albums/o204/hattypic/9c13a5a4.jpg
PLEASE HELP~~~~