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Official BOS Trial 2015 Thread (9 Viewers)

leehuan

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I only attempted 43 marks lol so ashamed...

The volumes question threw me off big time. I forgot how to do volumes after that.
 

DatAtarLyfe

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shiiit, the big guns in maths getting demolished by carrot
what is this sorcery?
 

lita1000

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Were there any big names at the exam? Apparently there were a few olympians last year.....
 

Ekman

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Never knew pyramids had curved edges...
 

kawaiipotato

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The volumes was interesting did anyone get it out? Did we have to prove that the area was in a ratio? Bc. I just assumed it and it worked
 

Drsoccerball

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Gabriel's like "Im Gabriel Moussa" everyone's like"whos that..." really -.-?
 

leehuan

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How were we meant to do the first integral on Q11?
 

leehuan

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Oh wow. All of my efforts actually didn't go to waste!

Except, i went a longer route and did u=sin(x) because I didn't see that u^2=sin(x) would work [Tried at the start when my brain wasn't working]
 

Drsoccerball

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For 11C i got p=0 as my only values what did everyone else get?
 

Paradoxica

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Oh wow. All of my efforts actually didn't go to waste!

Except, i went a longer route and did u=sin(x) because I didn't see that u^2=sin(x) would work [Tried at the start when my brain wasn't working]
Whenever you see an nth root of a basic trigonometric function, your instinctive response should be . Doesn't always work, but that's what I normally do. Sometimes, you'll need to do a bit of algebraic manipulation before making a substitution, but apart from that, it shouldn't require too much effort on your part.
 

deboiz

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Were there any big names at the exam? Apparently there were a few olympians last year.....
There were two NMSS (math summer school so sorta olympiad training squad?) ppl there (that i knew of)
 

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