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2018-04-16

【MATH】2018 DSE Paper2 (MC) suggested answer

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MC (not available yet)

答案

1         BDCAA     6   DDCDB
11       DACBD     7   ABBDB
21       CBBAD     8   CCACA
31       CCDCB     9    ADBBA
41       DACBA


Explanation
1.

continue...

31 則留言:

  1. why Q6 is D ? isn't option I is incorrect?

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    1. Beware that a is negative, so have to change sign when multiplying to the other side

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  2. Also, why Q17 is B? i got 96.7 pie cm^2

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    1. If you calculated correctly, wouldn't the option be 97 pi?

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  3. how come q43 is 3/10?

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    1. So you chose 1/6? Do you think EAA will be so kind to set such an easy question lol

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    2. The answer is: 1/6+[(4/6)^2](1/6)+[(4/6)^4](1/6)+[(4/6)^6](1/6)+...
      Do it in sum to infinity way.

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  4. Do you think this year is difficult?

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    1. Definitely, should be the hardest year.

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    2. At least time is much tighter for this year so cut off will be low. If you are not a candidate this year, you may have to time yourself in order to feel the difficulty, not from the questions themselves, but from the time constraints.

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  5. Will the cutoff of this year resemble to that of 2013?

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    1. Not likely, you can't forget you have the easiest paper 1

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  6. I think if you know how to do it and did something like question type. Then you would have high scores. The questions are hard and are testing the extent of candidates' knowledge like question 17 & 19, but not so tricky and unpredictable.

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  7. should question 32 has the correct answer A? AB/BC should be (loga/b)logb instead of (logb/a)loga... when I was determining the III, I thought these kind of choice are `always' correct, just waiting candidate to justify it and choice is as the correct answer. I doubted myself and try to establish the AB/BC

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    1. (III) should be correct as I have checked it using two methods: using standard log calculations, and substituting values.
      You probably have to recheck your calculations?

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  8. f i get it 34/45 correct in paper 1,
    75/105 in paper 2.
    Still have chance to get level 5?

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    1. hard
      it depends on cutoff

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  9. I got it 82/105 34/45 any chance of getting lv5?

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  10. if I got 98/105 in paper 1 and 38/45 in paper 2, what is the chance of getting 5**??

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  11. Don't be too afraid. Just forget the exam after you have tried your best. 天道酬勤。

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  12. 作者已經移除這則留言。

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  13. In Q39, the condition that TA is the tangent is not necessary. From AB = CD, it can be shown that angle B = angle C. The answer can now be deduced by considering the quadrilateral ABCE.

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  14. Sorry, I have to say this year is not very difficult. I found only the question 17 is difficult.

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    1. Ths average mc score this year will still be the lowest. The main issue is not difficultly, but should be the fact that the time is too tight and very few candidates can finish the paper in time. Take the linear programming question as example, it is not difficult but simply too tedious and time consuming. For me I usually get 44 or 45 with around 20 minutes left, this time I only get 41 as I have 3 questions having not enough time to calculate.

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    2. You should have a better training before exam. This is not an excuse to say something comfort yourself for getting only 41 correct if you think you are a strong candidate.

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    3. I do agree that I may get a higher score if I had more training. However, the fact that having similar training, obtaining a lower score can already reflect a relatively high difficulty for this paper.

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  15. why is q34 D but not C

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