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    (Original post by Kyber Ninja)
    I'm sure you're very capable in maths for being able to do this, but I think this is more of an AS-Level question.

    At least GCSE content with A Level application - similar to Mechanics 1.
    AS Maths is 80% GCSE
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    (Original post by Kyber Ninja)
    I'm sure you're very capable in maths for being able to do this, but I think this is more of an AS-Level question.

    At least GCSE content with A Level application - similar to Mechanics 1.
    Thank you so much. I look forward to AS and FM next year 🙂
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    (Original post by 12tastani)
    take this from someone who acc got a grade 9 in maths and is doing maths and f maths at A level, you saying BAC is not 120 degrees is literally wrong... like no diagram is ever that inaccurate when visibly it is not possible.
    I can always change the diagram no stress
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    (Original post by 12tastani)
    AS Maths is 80% GCSE
    And why does that statement prove my point wrong?
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    (Original post by Kyber Ninja)
    And why does that statement prove my point wrong?
    if the question requires 100% GCSE knowledge then it isn't A level application, it is both an A level and GCSE question meaning year 11s and year 12s should be able to answer it
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    (Original post by 12tastani)
    if the question requires 100% GCSE knowledge then it isn't A level application, it is both an A level and GCSE question meaning year 11s and year 12s should be able to answer it
    Mechanics is 100% GCSE Maths knowledge though and requires A Level application? Unless you decide to unnecessarily use trig identities for some of it.

    Aside from that, I didn't say it was 100% GCSE, that's your assumption.

    I did the old spec, so maybe they've changed the content, but that's what the old M1 was .
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    (Original post by Kyber Ninja)
    Mechanics is 100% GCSE Maths knowledge though and requires A Level application? Unless you decide to unnecessarily use trig identities for some of it.

    Aside from that, I didn't say it was 100% GCSE, that's your assumption.

    I did the old spec, so maybe they've changed the content, but that's what the old M1 was .
    Lol come on, i was obviously referring to new GCSE AND new A Levels, and also your M1 and S1 are harder than our M1 and S1 (we do both no options) except we do some parts of S1, S2, S3, S4 and M1, M2, M3, M4 randomly (for AS at least) it will probably get harder next year
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    (Original post by 12tastani)
    Lol come on, i was obviously referring to new GCSE AND new A Levels, and also your M1 and S1 are harder than our M1 and S1 (we do both no options) except we do some parts of S1, S2, S3, S4 and M1, M2, M3, M4 randomly (for AS at least) it will probably get harder next year
    Lol, good luck. Stats is boring as ****; I don't know what I'd do if I was forced to do more of it.

    I think Maths A Level won't be as drastically changed as GCSE. Looking at it now, a lot of the topics are identical, but the organisation in terms whats on each paper has changed a lot.

    The science A levels became AIDS. cheating *******s sneaked in Standard deviation into a Biology exam without anyone preparing for it lol.
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    (Original post by Kyber Ninja)
    Lol, good luck. Stats is boring as ****; I don't know what I'd do if I was forced to do more of it.

    I think Maths A Level won't be as drastically changed as GCSE. Looking at it now, a lot of the topics are identical, but the organisation in terms whats on each paper has changed a lot.

    The science A levels became AIDS. cheating *******s sneaked in Standard deviation into a Biology exam without anyone preparing for it lol.
    standard deviation in a science exam!!! that shouldn't even be on the specification. We are allowed to sue for anything that's not legally on the spec. lol

    Further Maths though, has changed a lot! FP3 & FP4 stuff is in our CP1 (core pure 1 - 1st unit)
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    (Original post by Y11_Maths)
    x
    Hi, my reply was a bit rushed earlier and I meant to say this a few days ago : I think what you're doing is really great. Creating your own questions is a brilliant way to revise and really shows that you understand a topic. So please keep making as many as you can and I'm happy to be tagged whenever you make one if you would like me to judge its difficulty (this is definitely a grade 9 question by the way).

    I would recommend this revision technique to more people but I doubt most students would want to make up their own questions! Maybe a hard 9-1 questions thread will get popular like it did last year and you'll be able to make questions for others to try.

    Creating your own question is a very hard thing to do (especially a grade 9 question) but I think this was an excellent attempt. A few things that could improve it:

    Diagrams are never to scale but make sure you don't confuse the student by making it very different to the information in the question (this has already been mentioned).

    For this question you can end up with \sin^{-1}\left(a\sqrt{b}\right) so I don't think you need to have a sin within the sin^(-1) - it's nicer to make the final value as simple as possible. Was this meant to be a calculator or non-calculator question?

    As I said earlier, saying that AB = 2(x-3) doesn't tell you anything because any number can be written as 2(x-3). You could equally say that AB = 5(x-2) and the answer would be the same. It is only important if that x refers to something else in the question. You can do this question with AB = y and AC = 3y, the expression for AB is irrelevant. Let me know if you want me to explain this more.

    I hope you don't mind me being critical of your question but I think it's always good to see how you can improve.
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    (Original post by Kyber Ninja)
    I'm sure you're very capable in maths for being able to do this, but I think this is more of an AS-Level question.

    At least GCSE content with A Level application - similar to Mechanics 1.
    I disagree. I think this question is perfect for grade 9 (with a few tweaks to the required answer).
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    (Original post by Notnek)
    Hi, my reply was a bit rushed earlier and I meant to say this a few days ago : I think what you're doing is really great. Creating your own questions is a brilliant way to revise and really shows that you understand a topic. So please keep making as many as you can and I'm happy to be tagged whenever you make one if you would like me to judge its difficulty (this is definitely a grade 9 question by the way).

    I would recommend this revision technique to more people but I doubt most students would want to make up their own questions! Maybe a hard 9-1 questions thread will get popular like it did last year and you'll be able to make questions for others to try.

    Creating your own question is a very hard thing to do (especially a grade 9 question) but I think this was an excellent attempt. A few things that could improve it:

    Diagrams are never to scale but make sure you don't confuse the student by making it very different to the information in the question (this has already been mentioned).

    For this question you can end up with \sin^{-1}\left(a\sqrt{b}\right) so I don't think you need to have a sin within the sin^(-1) - it's nicer to make the final value as simple as possible. Was this meant to be a calculator or non-calculator question?

    As I said earlier, saying that AB = 2(x-3) doesn't tell you anything because any number can be written as 2(x-3). You could equally say that AB = 5(x-2) and the answer would be the same. It is only important if that x refers to something else in the question. You can do this question with AB = y and AC = 3y, the expression for AB is irrelevant. Let me know if you want me to explain this more.

    I hope you don't mind me being critical of your question but I think it's always good to see how you can improve.
    Thank you so much this is an incredible response! I appreciate all the support and comments you have made in this and I will definitely take on board everything you have said.

    This question could be both non-calculator or calculator depending on whether the student knows their sine and cos values, however if I asked for the exact value of angle bca at the end then it would be a calculator for sure.

    When you say the final form can be written as sin^(-1) (a root b) are you converting the sin120 to a fraction and working from there? Because I did that and (assuming we had the same previous answer) am stuck on sin^(-1) (root a divided by b)
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    Not sure if I was doing this right... was cosine rule required? I couldn't find any other way to find the required angles/sides.
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    (Original post by mundosinfin)
    Not sure if I was doing this right... was cosine rule required? I couldn't find any other way to find the required angles/sides.
    Yes cosine rule is required
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    (Original post by Y11_Maths)
    When you say the final form can be written as sin^(-1) (a root b) are you converting the sin120 to a fraction and working from there? Because I did that and (assuming we had the same previous answer) am stuck on sin^(-1) (root a divided by b)
    Can you post what you got?

    If I was making the question I would probably say B\hat{C}A = \theta and then the question would be

    "Show that \sin \theta = \frac{a}{b}\sqrt{c} where a, b and c are integers."

    This avoids the sin^(-1) which isn't nice to have in an equation.
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    (Original post by Y11_Maths)
    Yes cosine rule is required
    Just realised my calculator was on radians which wasn't helping. Oh well, can't be bothered now
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    (Original post by mundosinfin)
    Just realised my calculator was on radians which wasn't helping. Oh well, can't be bothered now
    Aww haha thanks for trying anyways
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    (Original post by Y11_Maths)
    Aww haha thanks for trying anyways
    It was a great question for what I did Sorry it's too late for maths for me, plus I'm pretty sure my working is wrong. I hope to see more of your questions!
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    A very, very good question - yes, I too have an issue with the diagram being misleading - however, a great test of ability.

    Can I send you the answer to confirm?
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    (Original post by Notnek)
    Can you post what you got?

    If I was making the question I would probably say B\hat{C}A = \theta and then the question would be

    "Show that \sin \theta = \frac{a}{b}\sqrt{c} where a, b and c are integers."

    This avoids the sin^(-1) which isn't nice to have in an equation.
    I got this, is this correct, and how can I develop it into the final form a/b root c please?
 
 
 
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