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Sorry, I'm not following you, can you be more specific?Originally posted by Faera
oooh- okay- thanks.
One thing- with the (x^2 + 1)^(1/2) problem, my tutor said something about substituting (x^2 + 1)^(1/2) = u - x which i dont really understand; he said it'd work if I managed to make the x^2's cancel out... 0.o
lmaolol, this is what happens when girls do 4u maths.