# BoS Maths Trials 2018 (1 Viewer)

##### -insert title here-
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.

##### New Member
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

##### Retired
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

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

#### HeroWise

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

#### AstroHawking1090

##### New Member
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.

##### -insert title here-
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

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

#### clovvy

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

##### -insert title here-
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!

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#### 1039213

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

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

#### Q16slayer

##### New Member
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

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

#### clovvy

##### New Member
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!

#### Attachments

• 244.4 KB Views: 83
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