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THE EXAM! - HSN forum

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THE EXAM!


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#1 AM4R

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Posted 15 May 2007 - 03:27 PM

So what did you all think of it??

I personally thought it was really hard, any ideas what the grade boundaries might look like???
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#2 ice_illusion

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Posted 15 May 2007 - 03:31 PM

The grade boundries, hopefully lower than ever before.

Think I got somewhere in the 50s.

#3 thegift_guitar

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Posted 15 May 2007 - 03:31 PM

i thought it was allright actually wink.gif

Question 11 was a b****

Part from that think i got through majority. Back page was pretty difficult though, asymptotes of inverse tan??? laugh.gif

I would be interested in boundries, not sure what they might be though huh.gif

Rekon i got sumwhere between 55 and 65, a B would do me very nicely lol

#4 auchacad

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Posted 15 May 2007 - 03:31 PM

I thought it was extremely difficult and everyone in my class thought the same.

Way harder than anything else I have done before, well the first nine or so questions were quite easy but after that it just went downhill lol


#5 ice_illusion

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Posted 15 May 2007 - 03:34 PM

Did you get question 3 to work? The one where you show z is a root of an equation. Which is usually a really easy question but the numbers wouldn't work.

#6 thegift_guitar

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Posted 15 May 2007 - 03:37 PM

yeha i got it allight, the third root took me a while to get, cant even remember what it was now? 6 or sumthing blink.gif

#7 Adam

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Posted 15 May 2007 - 03:40 PM

Q3 worked fine, it's the only question I was really confident about. It was z = -6 IIRC.

I reckon I got between 40-50%. I don't really need this anyway so I won't be too bothered if I don't pass. I put in an effort for the sake of pride though.. lol.

#8 Da King

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Posted 15 May 2007 - 03:42 PM

Anybody got a link for the solutions/answers???

#9 kingding

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Posted 15 May 2007 - 03:46 PM

What the f*ck. That exam couldnt have been worse. What did you folks get for the integration by substitution?

#10 Da King

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Posted 15 May 2007 - 03:47 PM

1/24

#11 ice_illusion

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Posted 15 May 2007 - 03:49 PM

I had to give up the integration by substition halfway through it.
I didn't have enough time. And everyone else in my class left early.

#12 kingding

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Posted 15 May 2007 - 03:50 PM

Ah right, got that wrong then lol. What about the equation of the tangent? That was q 13 Parametric Differentiation i think.

#13 Da King

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Posted 15 May 2007 - 03:51 PM

gradient was -1 bt cant rememba da equation

#14 kingding

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Posted 15 May 2007 - 03:53 PM

Hm, that sounds more like it! What does everyone think theyv got in that percentage wise. I reckon about 50% myself


#15 ad absurdum

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Posted 15 May 2007 - 03:55 PM

I thought that was pretty tricky actually. More difficult than last years paper probably.

Off the top of my head:
1) a=1, b=-8, c=24, d=-32, e=16

2) f'(x) = 2cos2x e^(sin2x)
dy/dx = 4^(x^2 +1) 2xln4

3) other roots were 3-3i and -6

4) ln(8/9)

5) b)det(a)=3, det(ab)=96x, det(b)=32x

6) cos x = 1 - x^2/3 + x^4/24
f(x) = 1/2 - x^2 + x^4/3

7) p=10, q=-113

8) y=(Ax+B)e^-3x + (1/25)e^2x

9) Proof. the middle sum was 2q - 12q^2

10)first part, 1/24. Second part, pi/24

11) 4x+2y-3=0

12)Proof. Multiply both sides by (1+a), expend RHS and note that this is greater than 1+(n-1)a

13)y=root(2) - x, k=-1

14)Can't remember what I had for the function, but:
b)25k=3.310
c)yes, it was only slightly more than 1m
d)roughly 3.6m

14)a) No value of s and t that satisfies x=x, y=y, z=z simulateneously
b)Can't remember
c)(-1,0,2), P lies on L1 when s=-1
d)root(6)

15.a)y= +/- pi/2
b)pi/8 - (ln2)/4
c)pi/4 - (ln2)/2

There'll probably be a few slips in there though.
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#16 ice_illusion

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Posted 15 May 2007 - 04:14 PM

Thanks.

So if it's more difficult that last years, they'll hopefully put the pass marks down a bit? *prays*

About a third of my answers look similar to yours but they are the third I think theres an offchance I could be right.

#17 kingding

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Posted 15 May 2007 - 04:29 PM

Does anyone know for sure what the asymptotes for inverse tan(2X)?


#18 ad absurdum

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Posted 15 May 2007 - 04:34 PM

I'm sure the pass mark will be low, no one I've spoke to thought that was easy. Last year there seemed to be one or two difficult questions, but this year just about every question from 6 onwards I found tough.

There's a good chance a few of those I posted will be wrong by the way, so I wouldn't be to concerned if you've got something different smile.gif

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#19 rs89

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Posted 15 May 2007 - 05:35 PM

No Gaussian Elimination!! - That would have been an easy 5 marks



#20 kingding

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Posted 15 May 2007 - 06:00 PM

Does anyone know what last years grade boundaries were? Or where to find them?






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