AQA FP1 (1st June)

Oh the Newton Raphson method- that's in the formula book though.

I just use the equating the gradient method, i find it so easy.

has anyone learnt these:

sin(2x) = 2(sinx)(cosx)

Cos(2x) = 2cos^2(x) - 1

They just ranomly cropped up on page 75, in the matrix bit, and then a couple of exercises later on needed them... but I've never seen these identities before. (In my limited experience ie C1 & C2 )

Yeah i think its


[af(b) -bf(a)]/[f(b)-f(a)] Where X=a and X=b as approximations.

Its not in the formula book.

No i do mean linear interpolation are you sure we have the same book?

Aqa FP1 2nd edition.

I have never seen these??

has anyone learnt these:

sin(2x) = 2(sinx)(cosx)

Cos(2x) = 2cos^2(x) - 1

They just ranomly cropped up on page 75, in the matrix bit, and then a couple of exercises later on needed them... but I've never seen these identities before. (In my limited experience ie C1 & C2 )

me neither, do we need to know those 2 formula???

Could you possibly briefly explain this to me? Not quite sure what you mean :/

I dont see second edition though

Its all quite common sense to be honest though (linear interpolation). Just draw out a good diagram and work from there.

I hope they do a 'year' thing again- e.g. show that this is divisible by 2009 etc- they make me laugh!

what text book is that? cuz mine: http://www.amazon.co.uk/Advanced-Maths-AQA-Further-Pure/dp/0199149852/ref=sr_1_10?ie=UTF8&s=books&qid=1243796072&sr=8-10

doent have that formula

I hope they do a 'year' thing again- e.g. show that this is divisible by 2009 etc- they make me laugh!

I hope they do a 'year' thing again- e.g. show that this is divisible by 2009 etc- they make me laugh!