As Ryan mentioned, it is different for the person. Personally for me, all my essays were answered to extremely broad questions, therefore I was able to remember them and easily adapt them to the question, which is what I did for HSC. But once again, it depends for the person
Re: How do I get the exact gradient, with rational denominator, of the normal of para
y^2 = 12x
y = root(12x)
y' = 6/root(12x)
when x = 4, tangent gradient = 3/2root3
normal gradient = negative reciprocal of tangent gradient = -2root3/3
How does everyone this this years paper will be? Im really worried that the questions will be really wordy this year cause of the formula sheet introduction? Or do you think it will be the same difficulty and question style as past years?