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  1. Graceofgod

    Checking over answers

    I tend to try and get the first questions over with as fast as possible so I can spend a long time on the last few. They are much easier because they never have any tricks in them, just extra thinking etc. :) But yeah, I am prob just weird.
  2. Graceofgod

    point of inflexion

    Haha, as if they would be THAT pedantic... =S Anyway, if there were standing points or other points of inflexion then you would differ the points obviously. Otherwise it wouldn't be a problem.
  3. Graceofgod

    point of inflexion

    Ok, I have a devious solution: Would you be able to get away with Testing: When x = 3 When x = 5 f"(x) = positive f"(x) = negative Therefore (4,2) is point of inflexion.
  4. Graceofgod

    Checking over answers

    Timothy.Siu: I agree on your last point, with reading the question. However, I normally find I lose my only marks in questions 1-3. I have no idea why. Questions 7-10 I never really lose marks in. So hopefully the best strategy will just be to carefully start redoing the test and compare my...
  5. Graceofgod

    Checking over answers

    sicmarao: Thanks for the effort :) I don't know so much about the highlighter thing. I am talking maybe 1-2 marks lost for misreading a question I don't think I am going to bother highlighting every question to fix that :P -tal-: I completely agree with the 'easy' questions. undalay: I wish I...
  6. Graceofgod

    point of inflexion

    Oh right I misunderstood the question. Well I have never heard of that being necessary. So for that reason I am not qualified to answer, purely because I've never heard or thought about it. But I do highly doubt it. Official solutions to all the papers I have done never do this. Also, I have...
  7. Graceofgod

    point of inflexion

    I would assume so... If the question asks to find the point(s) of inflexion, then later asks to draw the graph... Pretty obviously you label the point of inflexion. However, if it doesn't ask to find any points of inflexion, you can probably get away without marking an exact point. You can just...
  8. Graceofgod

    Obtuse angles

    Bling05, perhaps you should just learn it anyway, the extra knowledge will never hurt you.
  9. Graceofgod

    Checking over answers

    I have pretty much got the 2u test 99% prepared for. The only problem is that I often manage to finish with up to half an hour, even an hour in my last trial remaining. My question is this: How do you best check over your work with the remaining time? I end up losing ALL my marks to silly...
  10. Graceofgod

    point of inflexion

    =D I am so smart. But yeah, I have been doing a LOT of maths practice papers recently, and I thought your question was a bit odd :P Glad I could help. Good luck :)
  11. Graceofgod

    point of inflexion

    I have a funny feeling you are asking the wrong question though. Are you sure it asked for the area of the major segment? Because if you have a sector OAB, and a chord AB forming a minor segment, then you are talking about something else...
  12. Graceofgod

    point of inflexion

    When a circle is divided into two segments by a chord, the smaller of the two segments is called the minor segment, the larger the major segment.
  13. Graceofgod

    point of inflexion

    Area of major segment = Area of circle - Area of minor segment by definition :P
  14. Graceofgod

    point of inflexion

    Normally in a 2u test, the questions like this will give you an equation. You will then be asked to find the turning points and determine their nature. To do this you find when f'(x) = 0 and then test with f"(x) If during one of these tests, you get f"(x) = 0, you have found yourself a...
  15. Graceofgod

    point of inflexion

    Hmmmm Horizontal point of inflexion is where f'(x) = 0 and f"(x) = 0, not just f"(x). This means that the gradient is 0 at the point, and the concavity changes too. Unlike a normal point of inflexion where just concavity changes. High five for 2u maths. Don't know why I do it >.<
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