Recent content by YannY

  1. Y

    cylindrical shells

    So basically for cylindrical shells you are making cylinders perpendicular to your non rotational axis. Thus parallel to your rotation axis. The key here is to note which axis it's perpendicular to because essentially thats how many shells you are making. technically speaking, you are trying...
  2. Y

    There is no substitute for hsc questions

    Who me? Why did i work at a biscuit factory and then change to a maths textbook printing place?
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    Using the software R

    Perfect, Thanks dude
  4. Y

    related rates

    First you draw the picture Then prove the two triangles are similar and what you come to realise is the smaller triangle is 1/3 of the bigger triangle. Thus the length between the man and the lamp is x and the length of the shadow must be x/2. Ultimately that means if the man is traveling...
  5. Y

    There is no substitute for hsc questions

    Title says it all - now do them! Even for your trials and stuff
  6. Y

    unusual graph-please help

    apparently it is, thats why i deleted my post.
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    Using the software R

    Sorry i couldn't up load the data file for you but if you know how to do this maybe you can show me via an example
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    Using the software R

    [1] 65 15 111 62 35 30 14 11 11 17 12 40 23 16 39 11 16 10 [19] 6 68 49 65 70 11 84 25 124 52 86 26 155 10 2 32 95 1 [37] 10 1 12 16 48 67 70 6 200 6 26 26 38 20 19 20 72 5 [55] 42 9 26 8 116 1 5 4 13 24 44 9 69 64...
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    Help with Using R

    Does anyone know how to bin a set of data? for example how would you bin 40 different data sets in a vector into groups of 4?
  10. Y

    Using the software R

    Does anyone know how to bin a set of data? for example how would you bin 40 different data sets in a vector into groups of 4?
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    HSC ~ MATHS ~ Coaching.

    Dear entity beyond the radiating frames. Are you looking for a tutor that can get you 100uai? Or get you top ranks in MATHS? Or get you to understand MATHS like never before? Before you read on i want to advise you to read the whole paragraph instead of leaving after the first or second...
  12. Y

    probabilty questions

    There are 13 letters with 3 Es 3 Ts 3 Ns So there are 13!/(3!3!3!) arrangements. If all two Es are together then then we shall treat them as one letter so then there are 12!/(2!3!3!) arrangments. Hence probability.
  13. Y

    Inequalities

    Ah, sorry i didn't post it - cause its quite tedious. But i dont get why you need the estimate the second bit and not the first part with the >=1
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    Inequalities

    can someone explain to me how HSC 1997 Q6a iii) is done and the need of the condition it gives you.
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    Tell me about 4Unit

    Imo, it depends how good you are at maths and how much time you will spend on it. But if you are willing to do well in the HSC and thus in your school subjects then i suggest 4unit maths as its imo the best scaled subject. (some people argue extension languages scale better.. true it does...
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