A nice 4U Q16 (2 Viewers)

[mreditor16]

I found this in a past trial. And it reminded me of 2010, yet it doesn't come anywhere close difficulty wise...

So just for you math-nerds to try out. I liked the question, and frankly the marathon threads were getting chaotic and muddled.

so here it is:



enjoy!

 

[trapizi]

Fort St 2013. This is the only question that I got full mark in the paper

 

[faisalabdul16]

Fort St 2014. This is the only question that I got full mark in the paper

this question is not q16 of Fort street 2014

 

[mreditor16]

this question is not q16 of Fort street 2014

he meant 2013, as shown by his edited post.

 

[faisalabdul16]

he meant 2013, as shown by his edited post.

just saw it

 

[trapizi]

lol

 

[mreditor16]

btw if anyone needs answers to this, just PM me

 

[mreditor16]

Fort St 2013. This is the only question that I got full mark in the paper

wow but you're in year 11

 

[faisalabdul16]

wow but you're in year 11

His sig and the hsc year under his username are different

 

[trapizi]

His sig and the hsc year under his username are different

lol my bad

 

[Fade1233]

Editor which 4u paper do you think is the most difficult? Personally I think 1993 then 2001. But my personal favourite was 2003.

 

[trapizi]

This is the most difficult imo http://www.boredofstudies.org/cours..._2013_Mathematics_Extension_2_Trial_Paper.pdf

 

[aDimitri]

Editor which 4u paper do you think is the most difficult? Personally I think 1993 then 2001. But my personal favourite was 2003.

carrotsticks > HSC > the rest (fair easy)

 

[Trebla]

This is the most difficult imo http://www.boredofstudies.org/cours..._2013_Mathematics_Extension_2_Trial_Paper.pdf

most difficult so far

 

[anomalousdecay]

most difficult so far

Implying that this years is going to be ten times harder

 

[tyrone97]

The link isn't working for me for some reason. What's the actual source of the question? I might be able to find it myself.

 

[integral95]

I found this in a past trial. And it reminded me of 2010, yet it doesn't come anywhere close difficulty wise...

So just for you math-nerds to try out. I liked the question, and frankly the marathon threads were getting chaotic and muddled.

so here it is:



enjoy!

Lol i was wondering how part ii) works then i realised you had to consider

that was pretty cunning of them

 

[trapizi]

The link isn't working for me for some reason. What's the actual source of the question? I might be able to find it myself.

Full paper and solutions
http://4unitmaths.com/fort-st-ext2-2013.pdf

 

[aDimitri]

Lol i was wondering how part ii) works then i realised you had to consider

that was pretty cunning of them

isn't it just 2 sums of a GP

 

[integral95]

isn't it just 2 sums of a GP

Nope cause the second expression if you expanded properly is x(1+2x+3x^2+…(N-1)x^(N-2))

Which is not a gp but... You know

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