Solution of Maths Extension 2 paper (1 Viewer)

DRAGONZ

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Thanks a bunch ...

Now to find out just how pwned I got :-S
 

renya

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lol, i did the test yesterday and i dont remember any of my answers.

im convinced i got question 1a wrong
 

Sonjay-

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yeah it's good to know what mistakes u have got

it's all about getting soemthing over and done with
 

Abtari

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there are a few mistakes with terry lee's solns that i found...

like the graph question, the part between -3 and 3 shouldn't cut the asymptote y=x

and in the complex no. question, the extremities of the diameter of the circle, at (1,1) and (1, -1) should be excluded with 'little circles'...

ah well
 

EvilDude

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I'm impressed he has soolutions up already.

Made me find some stupid mistakes, yet at the same time confirm some things..

(Eg getting the probability right, that was good :D)
 

vwola

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And me, i dont wanna look at them. It might wreck my enjoyment between the end of the HSC and the time we get our results back. ie. i probably failed but i dont wanna see that its certain i did.
 

~ ReNcH ~

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I can't see the solutions on the page...can someone post them up?

Btw. do you lose marks for transcription errors in the HSC? For thw partial fractions, I accidentally wrote "3x" instead of "5x" and so of course I got "a" and "b" wrong as well as (ii)...
 

Jeeeb

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Yeah I'm happy now, I'm pretty sure my mark is between 82/120 and 77/120 now maybe take a few for silly mistakes i don't rember making :). Cheers to Terry Lee for the sollutions.
 

redd

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~ ReNcH ~ said:
I can't see the solutions on the page...can someone post them up?

Btw. do you lose marks for transcription errors in the HSC? For thw partial fractions, I accidentally wrote "3x" instead of "5x" and so of course I got "a" and "b" wrong as well as (ii)...
nope you dont unless you made the question significantly easier in which case you didnt
 

~ ReNcH ~

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redd said:
nope you dont unless you made the question significantly easier in which case you didnt
Ok, that's cool :)
I was kind of wondering why I ended up with fractions for a and b, but I didn't go back and check until I came home and realised.
 
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Abtari said:
like the graph question, the part between -3 and 3 shouldn't cut the asymptote y=x
yes it does.

y = x + (8x)/(x^2 - 9)

sub in x = 0, no problem. curves can cut the asymptote - it only tends towards the asympotote when x tends towards infinity
 

~ ReNcH ~

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Is Terry Lee's region for Q2(c) correct? I forgot to make y=1 a dotted line...I wonder if I'll be penalised.
 

Estel

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Rench: you'll be penalised. Also note there should be open circles where the line cuts the circle.

Lee's graph of the curve is also incorrect. The curve cuts the asymptote y=x only once, at (0,0), as opposed to thrice as his diagram suggests.

..:''ooo said:
wtf??? wingers like u make me wanna vomit
Whingers like you would make me want to vomit if I cared enough.
 

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