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Official BOS Trial 2015 Thread (3 Viewers)

Ekman

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(Well we'll find out soon enough anyway, if the paper is uploaded.)
It wasnt about proving the trapezoidal rule, it was about justifying its geometrical significance
 

Sy123

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ヽ༼ຈل͜ຈ༽ノ UPLOAD THE PAPER OR RIOT ヽ༼ຈل͜ຈ༽ノc
 

InteGrand

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Actually it was different, it was about proving the inequality by using function derivatives, and substituting a suitable function that gives the AM-GM inequality
Pólya's proof?
 

FlyingKanga

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I kept looking at the front of my exam to see if I was actually doing the 2U exam. Oh God I've got a long way to go.
 

Drsoccerball

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LOL i was doing question 15 and i look over and ekmans up to questions 11 i nudge him "DUDE HURRY UP" nek minute ekman gets 70+
 

Trebla

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Hope you guys enjoyed that paper! ;)
 

leehuan

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I cried. Maybe out of enjoyment. Anyway, this was Q16 (a)

(Q16b was the overestimation of trap rule for concave up)













Q16(a) up!
 
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Ekman

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If people really want to see question 16, ill take a pic and post it
 

Ekman

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LOL i was doing question 15 and i look over and ekmans up to questions 11 i nudge him "DUDE HURRY UP" nek minute ekman gets 70+
You were so annoying in the exam, distracted me so much

Plus the way I did the exam was different. I didnt do it in chronological order
 
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Mr_Kap

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I kept looking at the front of my exam to see if I was actually doing the 2U exam. Oh God I've got a long way to go.
How hard was the 2u compared to other years BOS trials. Because in last year's BOS 2u paper that I did a few weeks ago I just gave up at Q13 and want to know if this years was around the same or harder.
 

Trebla

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What did you guys think was the hardest question in the paper? (both 2U and 4U)
 

Ekman

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Here is Question 16 for 4u. Sorry for any blurriness, couldn't get proper lighting

1.jpg

2.jpg

3.jpg

4.jpg
 

glittergal96

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It's a shame Q16b didn't go on to prove an error estimate for the trapezoidal rule (with n points of division). Most of the work was done for it.

(This kind of analysis is what I was looking for in my open-ended post in the MX2 integration marathon about comparing the accuracy of the trapezoidal rule and the Simpson's rule.)
 

Drsoccerball

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Carrot trolling with the crap volume diagram in question 11... Im getting better in ex 2 then 1 lol left the whole question 14 blank
 

Drsoccerball

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Also when i heard the fire alarm i was so happy thinking that the exam was cancelled...
 

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