[jessp777]

does anyone know how to get answers to past igcse papers, or does anyone know a realy helpful maths revision website- i am realy stuck on differentiation using the graphs....
i have come to a standstill in revision and need some links please...

[SwampM0nkey]

which Questions on which papers do you want answers/need help with?

[jessp777]

ok well this one..

express brackets 1 over square root 2 brackets to the power of 9. in the form square rootb over c. where b and c are integers?
its higher tier monday 7th november 2005, 4h igcse

[SwampM0nkey]

Ok, first you have to rationalise it ( remove surd denominator ) so this by multiplying it by ROOT2/ROOT2 which gives you (ROOT2/2), put this in brackets and then add the power 9 so you have (ROOT2/2)^9 which is an accepted answer.

[jessp777]

oh ok i see, thanks!