Please could somebody help with part a of question 5? Can't seem to do it by induction.
I ended up figuring it out half an hour later, haha. :) It is quite messy though. Sorry. Someone can probably do it much better as well.
This question has been asked before on the site :) you can check it out.
Yeah I just checked it out now. Thanks. That method of doing it is very complicated it seems. :/