I am bored (1 Viewer)

lyounamu

Reborn
Joined
Oct 28, 2007
Messages
9,989
Gender
Male
HSC
N/A
If you post up a paper, I will give the solution for that paper for you (despite my lack of general maths knowledge).
 
Last edited:

danal353

Member
Joined
Jan 16, 2008
Messages
456
Location
Sydney
Gender
Female
HSC
2009
If you post up a paper, I will give the solution for that paper for you.
this is just a question but if I was asked to find the area bounded by a parabola and a straight line and that area was below the x-axis, do I still just do it the same way?
 

lyounamu

Reborn
Joined
Oct 28, 2007
Messages
9,989
Gender
Male
HSC
N/A
this is just a question but if I was asked to find the area bounded by a parabola and a straight line and that area was below the x-axis, do I still just do it the same way?
top - bottom. yes
 

lyounamu

Reborn
Joined
Oct 28, 2007
Messages
9,989
Gender
Male
HSC
N/A
but wouldn't it turn out to be negative?and what if it also crossed over the y-axis
Nope, it actually doesn't matter whether the graph goes below the x-axis when you just try to find the area between them.
 

danal353

Member
Joined
Jan 16, 2008
Messages
456
Location
Sydney
Gender
Female
HSC
2009
it's an HSC paper so I don't have answers =( ... but you're probably right
 

meilz92

where are my hair
Joined
Jul 22, 2008
Messages
3,399
Gender
Undisclosed
HSC
2009
Uni Grad
2014
i have a maths question!


how come i only got 3/12 on Q10 of the 2007 HSC??
from Q5-9 i got 12/12 for each.... and then Q10 comes along... 3/12.... WTF?!


is it just me or was that a REALLY hard Q10? i think i got like 9/12 for the 2008 Q10...


do u reckon 2moro's question 10 is going to be THAT hard?
if it is i will die.
 

lyounamu

Reborn
Joined
Oct 28, 2007
Messages
9,989
Gender
Male
HSC
N/A
i have a maths question!


how come i only got 3/12 on Q10 of the 2007 HSC??
from Q5-9 i got 12/12 for each.... and then Q10 comes along... 3/12.... WTF?!


is it just me or was that a REALLY hard Q10? i think i got like 9/12 for the 2008 Q10...


do u reckon 2moro's question 10 is going to be THAT hard?
if it is i will die.
It's all different to individuals I guess.

Personally I thought it was 2008 < 2007. 2007 Q10 was okay. It wasn't overally difficult. But it was heaps of algebra which threw many students.

2008 Q 10 on the other hand was very fairly straightforward and easy. I guess that's why you got 9/12.

I really reckon u should try other Q10s like 2000 or 2003 or 2006 ones. They are considered hardest.
 

meilz92

where are my hair
Joined
Jul 22, 2008
Messages
3,399
Gender
Undisclosed
HSC
2009
Uni Grad
2014
I really reckon u should try other Q10s like 2000 or 2003 or 2006 ones. They are considered hardest.

i dont like this pattern at all:

2000, 2003, 2006....

the common difference is three...

so whats the 4th term in the series... 2009

eep!
 

ashllis92

Member
Joined
Sep 27, 2009
Messages
289
Gender
Female
HSC
2009
but wouldn't it turn out to be negative?and what if it also crossed over the y-axis
Like Namu said, crossing the y-axis is no problem however if it crosses the x-axis and you're trying to find the total shaded area you will need to do it as two definite integrals taking absolute values, then just add.
 

lyounamu

Reborn
Joined
Oct 28, 2007
Messages
9,989
Gender
Male
HSC
N/A
i dont like this pattern at all:

2000, 2003, 2006....

the common difference is three...

so whats the 4th term in the series... 2009

eep!
LOL! I didn't see that coming...
Good luck ;)
 

meilz92

where are my hair
Joined
Jul 22, 2008
Messages
3,399
Gender
Undisclosed
HSC
2009
Uni Grad
2014
thanks... dear god ill need it! *cries*
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top