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  1. C

    Marks deducted for using advanced method

    Do u need to prove it? I don't think u do... Anyway how it is simpler?
  2. C

    Marks deducted for using advanced method

    That's a 4U method, and should be allowable in a 3U exam. Like how I used integration by parts in an inverse trig exam, and the teacher marking it laughed (and got full marks too).
  3. C

    Questions from Coroneos' 100 integrals

    Well I'd have to scan it first, and it's school holidays so I don't have access to my school's high speed scanner. Hmm... What ones do you need help with? I'll see if I can scan just those specific pages because I'm not going to scan 20 pages one by one.
  4. C

    Questions from Coroneos' 100 integrals

    Yeah, my teacher did solutions for them. And I did them too.
  5. C

    Chem Mon M/C questions

    I found the answers... It's from a past trial for my school. It's D, C and D... I'm sure the answers are correct and that the questions were red herrings... Anyone know why the answers are C and D for the 2nd and 3rd question? Thanks
  7. C

    Biopolymer

    Hi, what is the answer and why? Also, how am I supposed to know this? :( Which of the following is not a recently developed biopolymer? (A) Biopol (B) Rayon (C) Poly(3-hydroxybutanoate) i.e. PHB (D) Polylactic acid i.e. PLA.
  8. C

    Chem Mon M/C questions

    Hi, I have 3 M/C questions below. Could someone please do them for me, and tell me why that answer is correct? Thanks Ammonia is produced using the Haber process. Which statement below is correct? (A) More ammonia is produced by heating the reaction vessel. (B) More ammonia is produced by...
  9. C

    Melting/Boiling points

    What if it's polar? Thanks
  10. C

    Melting/Boiling points

    Hi, why do melting and boiling points of a compound depend on its molecular mass? Thanks
  11. C

    Who is the greatest mathematician ever?

    How about J. Coroneos?
  13. C

    Conics help

    Ahh okay... Thanks Trebla.
  14. C

    Conics help

    Eh? Why is the y-value irrelevant?
  15. C

    Conics help

    Yeah, but how do I know that it intersects at (a/e, 0)? It could intersect at any point [ie. (a/e, y)]
  16. C

    Conics help

    That's the bit I don't get though. How do I know that the Tangent passes through (a/e, 0)?
  17. C

    am i the only person who does me2 who does not do any of the sciences?

    And also because there was a lack of teachers who could actually teach the subject. It's a pity though, my Physics teacher is really good and would've been a fine teacher teaching the old course.
  19. C

    Conics help

    Could someone please do these for me? Thanks
  20. C

    Induction concluding statements

    For my external HSC exams I'll probably write that simplified statement. But for the internals I'll write that 'dreaded mantra', as one of the teachers will probably take a mark off if I don't write it. I still dunno how to convince him that he's wrong. He's a very good teacher too. Oh well.
  21. C

    Volumes

    Could someone please help me with this? Thanks A solid is formed about the ellipse x2/25 + y2/9 = 1 in such a way that each plane section of the solid perpendicular to the x-axis is an ellipse whose foci are on the given ellipse. The major and minor axes of each section are proportional to...
  22. C

    Projectile motion

    Hello could someone please do this? Thanks
  23. C

    Evaluation of reliability of cation/anion elimination tests

    Hello, What could I talk about for the evaluation of reliability of cation/anion elimination tests? I can't find anything in my textbook. I mean, I know the concentration of the ions needs to be above 0.1M, but apart from that what else could I talk about? Thanks
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