HSC Papers- marks. (1 Viewer)

jet

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Definately an E4. Anything over 70% is an E4. I'm pretty sure the person who sets the band cut-offs each yr for 4u sets them quite low (usually in the 60%s). I think last yr's paper was fairly difficult though, cause I know a few guys who got E4s and they reckoned they got 71-75/120. But anyway, yes, 71% would be an E4.
Look at question 4a). It was worth a large number of marks and it was a complete joke. I almost laughed when I saw it.
 

braunstar13

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It's the "mental method" - a hybrid of the substitution and equating the coefficients (when necessary)

Say you have

Sub in x=2 to . Get this number and write it on top of x-2

Sub x=-4 to , write on top of x+4

So in partial fractions:



If the question contains repeated linear factors, like this:

Sub in x=2 to . Get this number and write it on top of (x-2)2

Sub x=-4 to , write on top of x+4

Now for the number on top of (x-2) I equate the coefficients of x2



So in partial fractions:





Sometimes I use this, but usually the above.




funny that you mentioned that, I thought the exact same thing
how does this let you find a,b,c where (ax+b)/(x-2)^2 + c/(x+4)? Also i dont see how you equated the coeff's of x^2 to get C+1/36=0,

I usually use the standard "supa cool method" or do it simultaneously after equating coeffs the normal way, but this way seems like it would save me valuable time. Please explain.
 

annabackwards

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2006: 103/120

I can't believe I've cracked 3 digits =D. I could actually do the induction, I'm usually shit at that.
Congrats :)

I'm doing the 2003 paper now - up to question 8 the paper was easy but now i want to kill it XD
 

annabackwards

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Have fun with the integration...:p
I got so confused with signs... I guess i should write neatly with signs XD

Anyway, i managed to get 108. Forgot how to find the area of an annulus and got confused with resolving forces ><"

hmmmmmm 2005 fell out really nicely for me....got a 116,,,,,i guess the right questions came for me =S lol
Wow, are you going for a state ranking?

I might try 2005 myself and see what i get :)
 

GUSSSSSSSSSSSSS

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wow solid effort. ive done 04-08 and am yet to break 100. Ill be content with a low e4.
well if thats wat ur content with the GO for it xD ....anything extra is just a bonus =]]]

Can confirm this. I just did this paper and got 107/120

Those 2007ers were so lucky!
i agree,,,,well at least for maths i agree =P
 
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shadi-fighter

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97/120 for x2 2001 test
Screw you guys above me with 110++
What is wrong with you guys!?!?!
I'm stoked about 97, if i get this each time then that's a 95 Examination Mark for meeeee TEEHEE

Anything above 80 is an E4 GUYS! YOU CAN DO IT
 

Studentleader

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Soooo have to try a MX2 paper to see how good I am compared to you hxc BoSers :cold:
 

joben

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lol u should hav done at least a couple by now.....unless u hav a really good exam timetable.
 

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