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    question about HSC exam.

    When the supervisors say 'pens down' and if i have like 2 more sentences to write ... will i lose marks by continuing on writing to finish it off, like in the trials it seemed fine but i was wondering if its possible as the HSC exam rules are more strict. i mean a finished conclusion in way...
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    cath trial 2006

    http://www.angelfire.com/ab7/fourunit/cssa2006.pdf i need help on 8a) part 3 and 4
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    graphing

    i always get it wrong and dont really understand how to graph abs[y] = f(x) and how is it different to y = abs[f(x)] thanks abs = absolute
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    intergration

    i was doing the moriah college 2001 trial when i came across this intergration http://coachesrwe.com/downloads/mathres/hsctrialexams/trials4u/file_info/download1.php?file=Moriah_College2001_4u.pdf question 1a part iii integrate 1/sqrt[2x2 + 3x]
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    need help

    (i) differentiate with respect to x the function h(x) = (log10x)/x (ii) given the only stationary point is a maximum deduce without calculating any numerical values, epi > pie i cant do the second part
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    whats the states top 3 unit mark each year?

    i was wondering wat would be the top maths extension 1 mark each year ... also when you top the state is that only HSC exam mark or overall mark (assessment and hsc) ? if its only hsc exam mark then wouldnt a few ppl get it because they would score 100% ... but each year theres only 1 ... i mean...
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    i need help

    question 7(c) part (ii) HSC 2003 http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2003exams/pdf_doc/mathematics_ext2_03.pdf cant believe its 1 mark ... if i had this question is exam ill probably leave it out. nvm. i got it ... thanks if anyone did try
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    question

    i did the my trial today and one of the questions asked for a diagram of a structure of a specific cell (which im not gonna just incase some ppl do the same exam)... but from the syllabus you get a choose the battery that you will study about... just say my battery that i did was different to...
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    question

    in the trial one of the question was ... in your study of motor and generators, you learnt about Edison and Westinghouse from a secondary source ... assessed the reliability of your sources ... 3 marks for these type of questions what are you meant to write to get the full mark ... seriously...
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    integration from trial

    just did my trial today theres one integration question i couldnt get ... its a 3 mark as well ... so disappointed but anyways S 2/(4+3sin[theta]) d[theta] using substitution t=tan[theta/2]
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    how does your teacher teach 4 unit?

    well im kinda pissed off at my teacher because all he ever does is do the examples and thats what we do every lesson and the exercises are for homework... he gives us all the solution booklets to both the arnolds and fitzpatrick book and expect us to do all the work ... when i mean examples i...
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    polynomial help please

    consider the polynomial P(x)=x^5 - ax + 1 , by considering the turning points on the curve y=P(x), prove that has 3 distinct roots if a > 5(1/2)^(8/5) its question 4(c) of sydney boys trial 2005 if you want to see the question clearer...
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    Please help

    Obital Decay im really confused right now... in the jacaranda book it says"as a satellite slows down it loses altitude ...." which doesnt make sense at all ... think about it say if you slow down you would increase the period (say around the Earth) which is true because it would take longer to...
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    integration from mechanics

    i cant get this for some reason ... please help dt/dv = 1/(g-kv^2)
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    Binomial theorem

    cant seem to get this question in the expansion of (2+3x)^n the coefficients of the x^3 and x^4 are in the ratio 8:15. Find n
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    catalytic cracking

    a question in our half yearlies ask what is the products when we crack ethane i originally had this question right but our teacher was persuaded by one of the student, now i have it wrong so i want to make sure ... and also an included explanation is helpful thanks
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    integration question.

    integrate (sec)^3 i got solution to it but i dont understand how they got it ... i just need explanation. thanks
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    lewis acids

    uhmm are they in the syllabus because cant seem to find them anywhere and i dont want to learn anything irrelevent for hsc
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    conics question

    show that the line 2y+x+5 = 0 is a tangent to the ellipse (x^2)/9 + (y^2)/4 = 1 . find the coordinates of the point of contact. thanks
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