Urgh! Sorry - I had to do some menial chores.
I assumed that it was too obvious that
4×2k was divisible by 8, so I said that it was divisible by 8, without rearranging it to make it
8×2k−1 first.
Not even a proper mistake.
Once I learn some more F.Maths it will be.
I haven't tried any yet. I have looked aat them but I haven't attempted them.
Huzzah! Just done STEP I 2004 Q1. It's probably the most straightforward STEP question I have ever done.
I'll see if I have any interesting questions.
Indeed. Join us.
Wcp beat me to it.
http://www.edexcel.com/quals/gce/aea/9801/Pages/default.aspx