BoS Maths Trials 2018 (1 Viewer)

[Paradoxica]

it seems like the probability of winning on the kth term in dependant on both the amount of cards (n) and the intended turn (k). it doesn't make sense to replace n with k if what im saying is correct.

The number of cards on the nth turn is n+2.

 

[avatarfahaad]

I loved the 4U paper but it didn't seem as difficult compared to the previous years. I had a lot of fun doing question 16 especially.

 

[Carrotsticks]

I loved the 4U paper but it didn't seem as difficult compared to the previous years. I had a lot of fun doing question 16 especially.

You just single-handedly doomed the 2019 BOS Trial cohort. Thanks for the inspiration. Good job.

 

[1039213]

Honestly if anyone passes either of them, they pretty much can guarantee a state rank. Thank god this is not the hsc lmaoooooo

 

[HeroWise]

Loll, we will see next year How hard these can get xd

 

[AstroHawking1090]

Hey with Q16 d) i) we use the fact that I(1/b) = I(b) - 2*pi*ln(b), which leads to an obvious statement which makes the show question true. However, we are using the result from c) v) which is only reached assuming a > 1. In d) b > 0. So isnt that a logical fallacy? Note you have to use part i to do part ii, which furthers the illogical result.

 

[Paradoxica]

Hey with Q16 d) i) we use the fact that I(1/b) = I(b) - 2*pi*ln(b), which leads to an obvious statement which makes the show question true. However, we are using the result from c) v) which is only reached assuming a > 1. In d) b > 0. So isnt that a logical fallacy? Note you have to use part i to do part ii, which furthers the illogical result.

No. The case 0<b<1 can be transformed via a functional equation into the valid domain over where the result was proven to be true. Perhaps you should keep staring at the paper.

 

[1039213]

When are the solutions coming up, just out of curiosity?

 

[clovvy]

we have HSC maths 4U and 3U coming up soon!! please get the solutions out at least!!!!

 

[Paradoxica]

4U should be out tonight

 

[Trebla]

Make that tomorrow night soz

If you want any specific questions in the paper answered in the meantime, please make a post here.

 

[Trebla]

Sorry for the delay, here are the solutions and results for the Mathematics Extension 2 BoS trials. Enjoy!

 

[1039213]

Congrats to whoever got 74 and 70 thats pretty good on a fairly challenging paper

 

[Radetzky]

It seems like the person who got 45 misplaced his multiple choice answer sheet

 

[Q16slayer]

Congrats to whoever got 74 and 70 thats pretty good on a fairly challenging paper

thanks, although the paper this year was easier so it might seem we did well, but really we didn't haha

 

[HAX0R]

Will the 3U paper be up prior to the exam?

 

[clovvy]

please get the 3U one out like ASAP!!! our exams are soon!!

 

[Trebla]

Here are the solutions and results for the Mathematics Extension 1 BoS trials. Enjoy!

 

[Trebla]

Should also remark that a surprising number of people actually left questions unattempted in the MC. If you don't know the answer then guess it!

 

[clovvy]

Damn I was only aiming for 20% in this BOS trials and I did way better than I thought