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Studying for Maths paper 2

  • 10-06-2011 7:37pm
    #1
    Registered Users, Registered Users 2 Posts: 401 ✭✭


    Was talking to a few of you before the exam and the majority of you said you felt paper 2 was easier than paper 1, and I talked about how I was the opposite :P Well I feel I did well enough in Paper one today, so I was wondering if those of you that do better at paper two have any tips for me for when I begin revising again tomorrow? cheers :D


Comments

  • Registered Users, Registered Users 2 Posts: 1,608 ✭✭✭cathalio11


    Legion. wrote: »
    Was talking to a few of you before the exam and the majority of you said you felt paper 2 was easier than paper 1, and I talked about how I was the opposite :P Well I feel I did well enough in Paper one today, so I was wondering if those of you that do better at paper two have any tips for me for when I begin revising again tomorrow? cheers :D

    Question 1. Area and Volume. Do all past questions that are part A. Familiarise yourself with the log tables and learn TOTAL SURFACE AREA (not in log tables).
    Then do all Bs and do Cs. Use examinations.ie marking schemes for answers and when you're good enough, do them on your own!

    Question 2. Co-ordinate Geometry. Do all past questions, log tables again!! Learn how to do each and every TYPE of question!

    Question 3 and 4. Constructions and circle theorem should definitely come up. Learn how to solve equations involving equiangular triangles, always come up!

    Question 5. Trigonometry. Easy. Keep doing exam questions.

    Question 6. Statistics...lol


  • Registered Users, Registered Users 2 Posts: 401 ✭✭Legion.


    Thanks, maybe I should have said I have no problems at all with Q2 and 6, but Trigonometry is probably my worst question. 3 marks in my mock :'( In saying that I feel I've improved in it, but it's still the question I'm least confident with.


  • Registered Users, Registered Users 2 Posts: 2,390 ✭✭✭Doublechinlolz


    cathalio11 wrote: »
    Question 6. Statistics...lol

    Exactly how you should study.
    But for area and volume all you need to do is learn TSA then practice the trickier part c's :)


  • Registered Users, Registered Users 2 Posts: 2,152 ✭✭✭Cakes.


    Maths Paper 2 seems to test you on your thinking skills.

    It makes you think of other ways to do things.


  • Registered Users, Registered Users 2 Posts: 401 ✭✭Legion.


    Maths Paper 2 seems to test you on your thinking skills.

    It makes you think of other ways to do things.



    Unfortunately my brain doesn't work like that :( My brain works better with languages etc, then I dont do as well with subjects like Maths and TG.


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  • Registered Users, Registered Users 2 Posts: 3,194 ✭✭✭FatRat


    Legion. wrote: »
    Thanks, maybe I should have said I have no problems at all with Q2 and 6, but Trigonometry is probably my worst question. 3 marks in my mock :'( In saying that I feel I've improved in it, but it's still the question I'm least confident with.

    Make sure you know the difference between right-angled triangles and non right-angled ones when it comes to trigo.
    You can use sin cos and tan for right angled triangles. Not bother. Just look at your tables book for that.
    Usually, in question C it will be a non right-angled triangle. You can ONLY use the Sin rule for this. The sin rule is in your tables book.
    Normally you will be given 3 pieces of a triangle and be asked to find a fourth. Us the sin rule and multiply and divide across as needed to find the fourth piece.

    For Q1, really, all it is is looking at your log book. Nothing else to it. Just make sure you note whether they want the answer in surds or pie of just the numbered answer.

    Also, the most basic piece of info.... PieRL means Pie x the radius x length.
    As I said, basic, but people might not know what to do with the formula PieRL, I didn't a few months ago :S


  • Registered Users, Registered Users 2 Posts: 401 ✭✭Legion.


    FatRat wrote: »
    Make sure you know the difference between right-angled triangles and non right-angled ones when it comes to trigo.
    You can use sin cos and tan for right angled triangles. Not bother. Just look at your tables book for that.
    Usually, in question C it will be a non right-angled triangle. You can ONLY use the Sin rule for this. The sin rule is in your tables book.
    Normally you will be given 3 pieces of a triangle and be asked to find a fourth. Us the sin rule and multiply and divide across as needed to find the fourth piece.

    For Q1, really, all it is is looking at your log book. Nothing else to it. Just make sure you note whether they want the answer in surds or pie of just the numbered answer.

    Also, the most basic piece of info.... PieRL means Pie x the radius x length.
    As I said, basic, but people might not know what to do with the formula PieRL, I didn't a few months ago :S


    Sounds good man, and I have no problem with the sine rule haha. although you're not supposed to, I use it for all triangles :D


  • Closed Accounts Posts: 4,850 ✭✭✭Indiego


    FatRat wrote: »
    Make sure you know the difference between right-angled triangles and non right-angled ones when it comes to trigo.
    You can use sin cos and tan for right angled triangles. Not bother. Just look at your tables book for that.
    Usually, in question C it will be a non right-angled triangle. You can ONLY use the Sin rule for this. The sin rule is in your tables book.
    Normally you will be given 3 pieces of a triangle and be asked to find a fourth. Us the sin rule and multiply and divide across as needed to find the fourth piece.

    For Q1, really, all it is is looking at your log book. Nothing else to it. Just make sure you note whether they want the answer in surds or pie of just the numbered answer.

    Also, the most basic piece of info.... PieRL means Pie x the radius x length.
    As I said, basic, but people might not know what to do with the formula PieRL, I didn't a few months ago :S

    and just to add to that bit about q1, sometimes you know the radius and height in a cone, and the formula you need to use for a question needs the slanted height (or visa versa) you need to use pythags theorum to find it,
    some people never think of that because you wouldnt expect it in that section :L


  • Registered Users, Registered Users 2 Posts: 108 ✭✭liamtimdusty


    Hi , Was wondering how to get total surface area of a cone , cylinder , sphere ? Is it not just the curved surface area?


  • Closed Accounts Posts: 1,487 ✭✭✭Pov06


    Can anyone post a list of Theorems we need to know for Paper 2? :D


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  • Registered Users, Registered Users 2 Posts: 5,513 ✭✭✭bb1234567


    for trigonometry all you need to know is sine rule and 1/2 abc sin c... statistics practise 2010 nd youll b grand... geometry 12 theorums and 6 constructions..co ordinate geo is easypeasy


  • Closed Accounts Posts: 1,487 ✭✭✭Pov06


    Yeah but what Theorems exactly do we need?

    I only have 10 :confused:


  • Registered Users, Registered Users 2 Posts: 144 ✭✭cantanstrophe


    Hi , Was wondering how to get total surface area of a cone , cylinder , sphere ? Is it not just the curved surface area?

    For the cone and the cylinder anyway, it's just the curved surface area plus 2(pi)(r)^2 for the cylinder or Pi(r)^2 for the cone. :)


  • Registered Users, Registered Users 2 Posts: 2,228 ✭✭✭robman60


    Anyone want to give predictions on theorems?

    9: If angles are equiangular, then their sides are in proportion.
    7: Angle at centre of circle is twice angle at rim.

    I can't remember exactly how the circle one is worded. They're just personal predictions, I can't guarantee anything! :p


  • Registered Users, Registered Users 2 Posts: 4,248 ✭✭✭Slow Show


    Q1- I always mess it up somehow, but mostly it's a matter of using the formulae from the tables books, and generally to think about it in real-life terms. I'm not too bad at thinking about it practically, but I always mess up the formulae for some reason! Gonna be careful and triple-check on Monday.

    Q2- Co-ordinate geometry, my favourite part of the course <3 You just mainly need the formulae again, it's all hideously basic tbh. You just need to know what to do if the lines are parallel or perpendicular (parallel slopes stay the same, perp. turn it over and change the sign on top) and points of intersection and to draw a graph.

    Q3+4 - Ah geometry...This is the part I'm most worried about. I know my theorems and constructions fairly well, gotta go over them tomorrow, but bleh, C parts are crap for me. But meh, attempts at everything ftw! Learn your theorems and constructions anyway.

    Q5 - there isn't much too it besides learning Sin - Opposite/Hypotenuse etc., the sine rule, how to find the area of a triangle (1/2 ab sin c), and the unit circle. I quite like this part, I'm prone to blunders but it really doesn't require much learning for it.

    Q6 - I never get full marks on q6, besides frequently laughing at it...know your mean/mode, how to find the mean if it's x, how to draw up frequency tables, histograms, cumulative frequency curves and how to answer questions on them (median, interquartile range, etc.)...very easy, I'm just a failure who never answers properly.

    This has made me feel somewhat more confident about paper 2...


  • Registered Users, Registered Users 2 Posts: 401 ✭✭Legion.


    Haha, thanks guys. I know all the constructions from TG so no need to go over them, so I guess I just need to learn 8 of the theorems, and have a basic knowledge of the 2 that came up last year. Still worried about Trigonometry though :( Maybe it was the way I was taught it but I just can't get my head round it at all.


  • Registered Users, Registered Users 2 Posts: 3,345 ✭✭✭buyer95


    MarkD09 wrote: »
    Exactly how you should study.
    But for area and volume all you need to do is learn TSA then practice the trickier part c's :)

    what is " tsa?"


  • Closed Accounts Posts: 175 ✭✭juncert


    'total surface area' not in log tables


  • Closed Accounts Posts: 1,006 ✭✭✭P H A 7V T O M


    Looking over Paper II OL, but I'm not really seeing what's the point. The drop from HL to OL is.... Significant, to say the least.

    Check some out on the Examinations website, they're awesome. I love how the stuff in the log tables actually tells you fully how to do the questions on OL, with HL you need to use the coconut a bit more... Glad I changed.


  • Closed Accounts Posts: 4,850 ✭✭✭Indiego


    to get tsa i dont learn off any particular formula,

    what i do is, say you have to find the tsa of a cone, what i do is find the csa, and then use the circle forum to find the area of the bottom part, and add them together :L
    that same method works for cyliders too, but you just double the answer you get for the circle, and add it on :L
    it works for anything with a flat part and a curved part all in one :L

    and for the hemisphere formula, what i do use the sphere formula, and half the answer :L

    hope this helps some of you :)


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  • Closed Accounts Posts: 1,487 ✭✭✭Pov06


    That's the way I do it too :pac:


  • Registered Users, Registered Users 2 Posts: 401 ✭✭Legion.


    I do that thing with the sphere formula, idk what you're on about for the cylinder though.


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