Solution to exercises week 39

I've been pretty dim-witted when reading your requests for the solutions to the exercises of week 39. Until yesterday I thought you wanted answer to the quizzes in the lectures. Then I thought you just wanted answers to weekly exercises (which in general we do not publish, (go to regneverksted!)). But of course you want the solution to 3.34 in Schroeder because I have referred to it in the oblig! I'm sorry! 
I've pasted it into a post on the padlet.