30 replies to this topic

[AM4R]

So what did you all think of it??

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

[ice_illusion]

The grade boundries, hopefully lower than ever before.

Think I got somewhere in the 50s.

[thegift_guitar]

i thought it was allright actually

Question 11 was a b****

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

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

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

[auchacad]

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

[ice_illusion]

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.

[thegift_guitar]

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

[Adam]

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.

[Da King]

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

[kingding]

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

[Da King]

1/24

[ice_illusion]

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.

[kingding]

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

[Da King]

gradient was -1 bt cant rememba da equation

[kingding]

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

[ad absurdum]

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.

[ice_illusion]

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.

[kingding]

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

[ad absurdum]

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

[rs89]

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

[kingding]

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