Mandatory assignment available

I have put out the mandatory assignment (there's only one). It isn't due till April 4th, but as there is an Easter vacation in between, I thought it might be a good idea to get it out early. There are three problems. The first two are from Chapter 1, and you should be able to them already now. The third problem is from Chapter 2, mainly from Section 2.1, but for the final question it's an advantage to have read section 2.2.

Tom