2014 HSC Extension 2 Maths Carrotsticks' Solutions (3 Viewers)

[Kurosaki]

Okay, I have now amended my solutions, and filled in that missing conics question with the (unfortunately) bashy method.

Please check my explanation for Q16 (b) (i), does this make sense to you?

https://www.dropbox.com/s/dthlsed7gfknygt/HSC 2014 Extension 2 Solutions.pdf?dl=0

Yes it makes sense =).

 

[iStudent]

Carrot how did you get the mx2 paper so quickly? (curious). Do you have like a special network of students who provide you with the paper the minute the finish or something? xD

 

[Carrotsticks]

Posted my brief thoughts on the paper in the first post.

 

[Trebla]

To be fair 'reverse quotient rule' isn't actually a thing. It's more of a trickier 'inspection' approach of the integration by parts method.

 

[CrackerMo]

i marked my paper using project academy solutions, anyone know if there's any errors?

Terry Lee's are out. Go check~

EDIT: You work for them...wot.

 

[mirachael]

For the argand diagram question I didn't explicitlywrite that the angle was pi/4 but I did show that the boundary lines passed through (1,1) and (1,-1). Is that alright?
Also how pedantic do you think they'll be about the graphing question afterwards (x^2-1/x^2)? Will they deduct marks if the line isn't neat, but you have the general shape and intercepts?

 

[Carrotsticks]

That is sufficient.

Regarding how pedantic they are, you should still be awarded full marks (unless so messy that it demonstrates a false property) because it is in question 11 after all, and not worth too many marks.

 

[Kurosaki]

Hey Carrot, how do you insert your pictures from Word into a Latex file?

 

[Carrotsticks]

Hey Carrot, how do you insert your pictures from Word into a Latex file?

The file isn't a TeX file.

But to TeX editing programs have an image embedding function where you 'attach' an image file (ie: .png) to the main document file and it lies in the same folder where everything else is.

 

[FrankXie]

The last integral is an application of integration by parts, though it is sophiscated because u and v must be carefully chosen.
v = -(ln x + 1)^{-1}, u=x\ln{x}.

 

[dan964]

Hey guys, could someone please direct me to a link, as to where I can download a copy of the 2014 4U Paper as well as the one for 2U, curious to see the papers. Thanks in advance guys

http://community.boredofstudies.org...-mathematics-extension-2-a-8.html#post6773919