Upload, question and seminar problems

Uploaded: the draft revised into full slideset for tomorrow - and most of Wednesday, I guess.  Same URL. If you reload, you should get a version which on slide 1 starts with "Have" and has a "To follow today: More of everything", and then a  "Question for you: anything you need reviewed on Wednesday?"
- please form an opinion on that question!  ("Nothing" is a valid opinion.)

Problems for next week: as posted, actually! Just take note: 

• It is the entire 139, but with part (b) done by a different method (given in today's upload, but might not be lectured until tomorrow). 
• 34 is indicated as "possibly low priority"; it does not take long time if you spot it.  But if you don't ...