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  1. A

    2004 probability

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

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

    Proving Max points necessary?

    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
  4. A

    Question about using the discriminant.

    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...
  5. A

    2004 probability

    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...
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    Confidence.

    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,
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    Quick query!

    all goods :)
  8. A

    Confidence.

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

    2004 probability

    <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...
  10. A

    Quick query!

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

    2004 probability

    1 - (of sum >45) (draw a table)
  12. A

    Quick query!

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

    Exam paper structure.

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

    Any tips for tomorrow?

    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
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    Any tips for tomorrow?

    Thankyou everyone, i just wanna avoid silly mistakes and stuff like that
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    HSC 2013 Maths Marathon (archive)

    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>
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    HSC 2013 Maths Marathon (archive)

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

    HSC 2013 Maths Marathon (archive)

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

    HSC 2013 Maths Marathon (archive)

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

    Any tips for tomorrow?

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