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  1. rama_v

    Tutor in Blacktown

    Hi, I'm currently in my fourth (honours) year at university, completing my science degree. I'm willing to tutor students in Maths (2 Unit and General), Physics and Chemistry. I have several years of experience in tutoring students at both tutoring colleges as well as freelance. I graduated from...
  2. rama_v

    Tough integration

    Here's a hard integration our calculus lecturer gave us the other day: ∫x4(1-x)4 / (1 +x2) dx, from 0 to 1. Can anyone show me a way of doing the integral by hand which is not pages and pages long? btw the answer is 22/7 - pi.
  3. rama_v

    Integrate e^-(x^2)

    I have noticed in many textbooks people have written questions such as Integrate e-x2..And then the answer is supposed to be -2xe-x2..But is that even correct? The reason I ask is that when I do this on maple, I get things that involve the "Erfi" function, and I have read in books that there...
  4. rama_v

    A word about Multiple Choice

    Just a word out there to everyone, there have been past HSC IPT exams where there has been more than one answer to a multiple choice question. For example there was this question on which type of network topolgy uses CSMA/CD and the answers were BUS, RING, STAR, or something else. Both BUS and...
  5. rama_v

    Predict the possible 2005 Modules King Lear Question

    I think it might be on themes, they havent really asked that last few years. Obviosuly it will involve productions/interpretations. I still think it is going to be an essay, I hope so anyway ;) Again, Im answering a question before its been asked :p
  6. rama_v

    Binomial sucks

    let x = 1 then 22n = 4n from first looks it seems like you should differntiate it then let x = 1 EDIT: what the hell is wrong with this BOS server lately lol, all the timings are off..Laz where r u?
  7. rama_v

    Nuclear staability

    Is it required to know for the dotpoint "describe the conditions under which the nucleus is stable" the i nteractions between the strong nuclear force, the coulombic repulsion forces between protons, etc., or will it suffice for saying in chemistry that large atoms (>83 mass number) become...
  8. rama_v

    Minimisation Question

    Hey everyone, Can I please get help with this question: An open box is to be made of thin sheet metal with a square base having edges x metres long and vertical sides y metres long. It is to have a volume of 2 m3 (i) Show that the surface area of the box (asuming negligible thickness) is...
  9. rama_v

    Two people ranked first

    Can two people come first in assessment marks? I know these two guys in economics who have the exact same assessment mark, they got the same mark in the trials and every assignment as well, so what would happen in this case? Would the teacher just send two firsts and then the next person comes...
  10. rama_v

    Difference between 18 and 20

    Is there some sort of thing I am doing wrong in my english essays, because the most I can ever get is 18/20 for anything written in exam conditions. I can get full marks when we have to hand in the essay, but never full marks in exam conditions. Considering that the second paper is basically...
  11. rama_v

    Nanotechnology

    Is this degree good at UTS? What do current students doing this degree think of it? Im really interested in it...
  12. rama_v

    Student held over online mugging

    From http://news.bbc.co.uk/2/hi/technology/4165880.stm : ------ Police in Japan have arrested a Chinese student over the use of a network of software "bots" to steal items in an online role playing game (RPG). Players were attacked in the game, Lineage II, and their items were then sold for...
  13. rama_v

    Loan Question

    The Smith's borrow $150 000 from the Bank at 9% pa. compounded monthly for 25 years. The Bank has a special deal - no repayments are required for the first nine months. (i) Show that the amount owing after 1 month is: 150 000 (1.0075) (ii) Show an expression for the amount owing after 10...
  14. rama_v

    1993 HSC Question

    Hi Guys, I've got a question that I came across in the 1993 exam that I couldn't do. Its question 10.(a) I have attached a copy of the question. I could get part (ii) quite easily but for some reason I cannot get part (iii) - the answer is an exact answer: x = (sqrt[5] -1)/2 Thanks
  15. rama_v

    World Jump day

    If 600 million people on earth all jumped at the same time apparently it will shift the earth's orbit slightly and possibly stop global warming http://www.worldjumpday.org/
  16. rama_v

    Inverse function question

    Hey guys Quick question from the 2002 HSC ext maths paper (7.a.iii) http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2002exams/pdf_doc/mathemat_ext1_02.pdf find an expression for y = f-1(x) in terms of x assuming that f(x) = ex + 1/(ex) Thanks
  17. rama_v

    Pnp amplifiers

    Hi guys, Im having trouble understanding how an arrangement of pnp semiconductors can actually amplify a signal. The best Ive got is from csu which doenst go into much detail, all it says is " A small AC current in the emmitter-base circuit produces a large current flow in the...
  18. rama_v

    Hard Probability question

    A bag contains 4 red and 3 green apples. peter took two apples at random. If it is known that at least one of the apples is red, find the probability that they are both red. Answer: 6/17 (apparently).Unfortunatley I cant get the answer, can someone please show me? Thanks
  19. rama_v

    Quick Trig Question

    How do you solve Tan2x-3Tanx=1 ? I keep getting a cubic and it doesnt seem to work out..
  20. rama_v

    Where are you up to?

    Where is everyone up to in their IPT course? We are up to Multimedia Systems (our second option topic), our last topic.. We just finished TPS.
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