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its the probably of rolling a score of 25? when the both dices land with 5 on the top

what do you mean? can you give an example of a question ?

if it ask you to prove its a max point, you have to prove the stationary point is a maximum, by either second derivitave or a change in gradient

the discriminant is used to find whether their a 1 roots, or 2 or no roots and whether their equal, if the discriminant is less then zero, then the parabola doesnt touch the x axis, if its equal to zero, it touches the x axis once, and if its greater than zero it touches it twice. look up some...

okay, the question is asking, what is the probablity that the the sum of the first 2 scores ( each score is the mutiplication of the 2 dices) is greater than or equal to 45. So youd find the probably of actually getting a 45 or greater, and then minus 1 from it, to get the probablity of not...

i dont mean as in no study, i guess i mean when im nervous! thats the word, when im nervous for an exam, i do way better than if i was confident and feeling prepared,

all goods :)

Its kinda the same for me, when im feeling confident i do really shit, and when im not feeling confident i do extremely good

<a href="http://www.codecogs.com/eqnedit.php?latex=1-P(\textup{Sum}\geq&space;45)" target="_blank"><img src="http://latex.codecogs.com/gif.latex?1-P(\textup{Sum}\geq&space;45)" title="1-P(\textup{Sum}\geq 45)" /></a> <a...

if no other question below it asks for inflection points, then you can do it optionally to help with the sketch of the graph

1 - (of sum >45) (draw a table)

station points is when f'(x) = 0 inflection points is when f''(x) = 0

i think its easier, because the test doesnt seem like such a drag

Thankyou again, yeah im going to try go at a reasonable pace, so i avoid silly mistakes, and think before i answer the question, and yes hopefully im prepared for question 16! im hoping its proofs mostly

Thankyou everyone, i just wanna avoid silly mistakes and stuff like that

Re: HSC 2013 2U Marathon <a href="http://www.codecogs.com/eqnedit.php?latex=y&space;=&space;x^{3}&plus;3x^{2}&plus;3" target="_blank"><img src="http://latex.codecogs.com/gif.latex?y&space;=&space;x^{3}&plus;3x^{2}&plus;3" title="y = x^{3}+3x^{2}+3" /></a>

Re: HSC 2013 2U Marathon Ah i see! thankyou

Re: HSC 2013 2U Marathon It helps when you graph it.

Re: HSC 2013 2U Marathon How did you get KL as 6 + x ?

Any tips for tomorrows exam? Anything we should avoid doing or look out for? would be greatly appreaciated!