ben1996123
Banned
It's even worse when you're lecturer can't make his mind up on which one to use :/
(Out of interest Ben, are you studying A-level maths now? Considering you've differentiated x^(x^(x^(x))) which is something doable with the tools A-level maths gives you and a little insight.)
I'm in year 11 (10th grade for americans), and I started C1 in September (since then I've done every question in my textbook apart from about 10). At school, I haven't done the chain rule/logs/e/anything like that, I just decided to learn it all myself. I've learnt up to C4 so far (still learning some stuff though). I started A level September 2010.
Edit: when you are lecturer? l0l
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