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Thread: 2U Maths Exam Thoughts

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    2U Maths Exam Thoughts

    How did you guys find the exam overall?
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    Re: 2U Maths Exam Thoughts

    DONE!

    Not that bad at all.

    Q16 very last part stumped me lol
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    Re: 2U Maths Exam Thoughts

    There were some questions with 3u difficulty e.g the dice question and the max min involving implicit Differentiation


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    Re: 2U Maths Exam Thoughts

    There were several interesting questions for sure. In the last part my working was too messy so I gave up and decided it would be better to check my other answers. I’m hoping for a mark of 95+ but I’m not feeling so good. A solid paper overall.
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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by red152 View Post
    There were several interesting questions for sure. In the last part my working was too messy so I gave up and decided it would be better to check my other answers. I’m hoping for a mark of 95+ but I’m not feeling so good. A solid paper overall.
    Mr. Stark, I don't feel so good...
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    Re: 2U Maths Exam Thoughts

    The 2u paper was not bad, only downside was q16.

    Best case scenario is 90+, but the probability question and dv/d theta was definitely 3u level, I struggled with them.

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    Re: 2U Maths Exam Thoughts

    Thinking I got around 96,97 what would that align to?

    For shoe multi it was 1/7 right?

    Also for the max min was I like the only person who equated the curved surface area of the cone and the sector area of the circle to find theta lol there must have been an easier way
    Last edited by HoldingOn; 25 Oct 2018 at 6:28 PM.

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    Re: 2U Maths Exam Thoughts

    Thought q16 was a very nice question, 1-15 were pretty straightforward with a couple of nice qs.

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    Re: 2U Maths Exam Thoughts

    What do u guys think is going to be the cut-off this year for band 6?

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    Re: 2U Maths Exam Thoughts

    i did the same thing and thought majority of the state wasnt gonna do this

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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by HoldingOn View Post
    Thinking I got around 96,97 what would that align to?

    For shoe multi it was 1/7 right?

    Also for the max min was I like the only person who equated the curved surface area of the cone and the sector area of the circle to find theta lol there must have been an easier way
    yeah i did the same thing. feel like the majority of 2u students didnt though

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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by FieryFX View Post
    yeah i did the same thing. feel like the majority of 2u students didnt though
    Yeah I was like what isn't this 2U.

    Re cutoff it was definitely harder than 2016 and 2017 so I'm thinking low 80s for b6 cutoff.

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    Re: 2U Maths Exam Thoughts

    Please tell me someone got π/5 something for theta in q16. Also someone please tell me how to do the MC with the parabola dish thingy and the number of downloads one???

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    Re: 2U Maths Exam Thoughts

    Ah. Can help on the parabola, can't do theta though.

    x2=4ay is the parabola formula.
    Sub in x=12, y=4, and your a value has to be 9.

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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by lovelife_pal View Post
    Please tell me someone got π/5 something for theta in q16. Also someone please tell me how to do the MC with the parabola dish thingy and the number of downloads one???
    Downloads. You had to split it into a geo series (2^n) and an arithmetic series (n). At the end, you yeet both of them together (sum to 20 terms), leaving with 2 billion ish downloads total.
    Last edited by franktheman; 25 Oct 2018 at 8:46 PM.

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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by franktheman View Post
    Downloads one was very smart. You had to split it into a geo series (2^n) and an arithmetic series (n). At the end, you yeet both of them together (sum to 20 terms), leaving with 2 billion ish downloads total.
    The sum total was 2 097 360.
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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by franktheman View Post
    Downloads one was very smart. You had to split it into a geo series (2^n) and an arithmetic series (n). At the end, you yeet both of them together (sum to 20 terms), leaving with 2 billion ish downloads total.
    LOL I just did it manually by adding the 20 terms
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    Re: 2U Maths Exam Thoughts

    Ugh I am the only one who thought that was pretty hard, I don’t do any other math except 2U, and I did a lot of past papers but I feel like I f’ed this one up real bad >~<

    I feel like no matter how much more I could’ve studied, I wouldn’t have done better anyways.


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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by franktheman View Post
    Wait really?
    TBH test wasn't too bad, just q16 was annoying
    I was assuming cutoff for b6 would be high 80s (maybe 88, 89?). B6 level would be like losing 5 marks from q16 (I'm looking at you dice game) and a stack of 5-7 marks from mistakes/errors throughout the paper. I felt b6 would be more high 80s, maybe even low 90s.
    Look at raw marks.org never in recent history has requirement b6 been higher than 88. I'm thinking our paper was much harder than 2014 and the last couple of years

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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by HoldingOn View Post
    I'm thinking our paper was much harder than 2014 and the last couple of years
    Definitely imo


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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by lovelife_pal View Post
    Please tell me someone got π/5 something for theta in q16. Also someone please tell me how to do the MC with the parabola dish thingy and the number of downloads one???
    For theta I found x to be root 200/3 or something like that. Then I considered that the curved surface area of cone is equal to the area of the cut out sector they gave us. So I just found the max value of the the cone and then used the area of sector to find theta by equating the areas. I got like 5 radians I think

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    Re: 2U Maths Exam Thoughts

    Quote Originally Posted by HoldingOn View Post
    Look at raw marks.org never in recent history has requirement b6 been higher than 88. I'm thinking our paper was much harder than 2014 and the last couple of years
    Had a look at the raw marks.
    Sorry for being cocky, you're right :/
    B6 at 88 is unrealistic
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    Re: 2U Maths Exam Thoughts

    oml I bombed that paper, brb gotta change my uac preferences

    Legit walked in aiming for a band 6, walked out hoping for a band 4. I swear it feels like I've gotten worse at maths over the past couple years. Funny though, I did the very last part of q16 fine but the rest of q16 I struggled on :/
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    Re: 2U Maths Exam Thoughts

    I feel like a proper imbecile reading this... All these smart people.
    I was nervous at the start and made a few errors all of which I hope I fixed.
    Was on track for most of it but I feel like I didn't do that well.
    16b and 16c gonna pull me down.

    My ATAR is descending to an absolute minimum with no signs of it being a turning point.
    It's taken a turn for the worst and is curving downwards drastically.
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