Official BOS Trial 2014 Thread (1 Viewer)

[Carrotsticks]

Here is one of the integration problems I was considering putting in the Extension 2 paper.

 

[Carrotsticks]

Here's another problem I was considering adding into the paper. Bonus points if you can find a method to solve this in less than 3 lines.

 

[Immortality]

Oooh these questions are pretty slick (Y)

 

[clockworkorange]

Please put me in for both Ext 1 and Ext 2

 

[trapizi]

Here is one of the integration problems I was considering putting in the Extension 2 paper.

Is it too hard or too easy that makes you remove this question from the paper ?

 

[SittingForMathsExams]

I'll sit for the tests

 

[lilytao2014]

Please put me down for Ext 1 and Ext 2 exams thanks!

 

[megusta]

Here's another problem I was considering adding into the paper. Bonus points if you can find a method to solve this in less than 3 lines.

3 lines?

 

[dunjaaa]

damn, beat me to posting , as for the integration question: (I haven't thought of a more cleaner way besides t-formula)

 

[Swaan]

I'm interested in ext 1, is there still space?
And am I still welcome to sit it even though I'm looking at a 43-44 atm?

 

[RealiseNothing]

Here's another problem I was considering adding into the paper. Bonus points if you can find a method to solve this in less than 3 lines.

(should be trivial that the modulus of the fraction is 1 since the bottom is the conjugate of the top)

(as )

Hence:



So the three points are collinear due to the condition that equality holds for the triangle inequality IFF the triangle is degenerate, i.e. the vertices are all collinear.

 

[RealiseNothing]

Here's another problem I was considering adding into the paper. Bonus points if you can find a method to solve this in less than 3 lines.

They are in fact the same point, etc.

 

[nomadz]

I would like to attend Ext2, thanks!

 

[FallenDepths]

I'd be interested in both Ext 1 and 2, thanks

 

[megusta]

They are in fact the same point, etc.

damn gg
hats off

 

[mojodojo]

Awww yeee Defs gonna want to try out the Ext 1 and Ext 2 Paperr

 

[aDimitri]

damn, beat me to posting , as for the integration question: View attachment 30951 (I haven't thought of a more cleaner way besides t-formula)

This was my method too except i stopped halfway through the partial fractions because i was disappointed i couldn't find a cleaner way to do it

 

[galligalli]

I would like to attend the 3u and 4u exams

 

[Nukeboy]

Can I please confirm a +1 for the 2unit tests?

 

[Carrotsticks]

They are in fact the same point, etc.

Exactly what I was looking for, well done.

damn, beat me to posting , as for the integration question: View attachment 30951 (I haven't thought of a more cleaner way besides t-formula)

There is a cleaner way.

Hint: Auxiliary Angle Formula.