I'm hoping for a Series/Induction/Polynomials in Q16 with less Mechanics.
I heard Mechanics is slowly making it's way out of the course so maybe even less Mechanics? (I hope that's true)
Re: HSC 2013 4U Marathon
I'm not sure if this is correct but I guess i found one polynomial solution?
EDIT:
(there should be a plus minus sign after the quadratic is solved)
When I solved the quadratic, I should get two solutions
so the 2nd polynomial would be
p(x) = (-1)^(2n) x^n (x-1)^n...
Re: HSC 2013 2U Marathon
If I was marking this, I would give it full marks.
If you want to 'improve' it, I guess you should focus more on the fact that perfect squares cannot have a difference of 1 as that is the heart of the solution.
Well done.
I must admit though... I know alot of students who instead of studying, constantly worry about the method BOS moderates marks etc.
and eventually end up predicting 30+ scenarios of marks, satisfying themselves and then don't even study at all.