Maths Ext 2 Predictions (2 Viewers)

[daddywal]

Hi, I want to know if its possible for me to get 97+ scaled in 4u this year. The reason I ask this is because the tests are getting harder each year and that just makes me certain regarding my ability to perform in the exam. These are my results in past HSC papers I have done:
2020 - 96
2021 - 80
2022 - 83
2023 -83

 

[C2H6O]

Hi, I want to know if its possible for me to get 97+ scaled in 4u this year. The reason I ask this is because the tests are getting harder each year and that just makes me certain regarding my ability to perform in the exam. These are my results in past HSC papers I have done:
2020 - 96
2021 - 80
2022 - 83
2023 -83

DAMN that's good. It depends on the difficulty of the exam, but I'd think you're close to a 97. Check rawmarks.info they have raw hsc marks from past years and what they scaled to. According to their data (not 100% accurate), you would've got 97+ in 2020 and 2023

 

[K2Trappy]

i think so if you can make sure you drop almost no marks in questions 11-15, so that if you flunk multi choice and 16 you can still have the possibility of a score of 70-75 and an E4

bruh I start dropping marks at 13 idk what u talking bout full from 11-15

 

[K2Trappy]

occasional mark drops at 12 as well and if the day is not good 11 also happens

 

[K2Trappy]

i accept my fate to maths, who wants an e4 anyway?

 

[K2Trappy]

is projectile with k components possible to come? I've tried to find it but it just doesn't exist on any hsc paper but I've seen a few on trials

 

[Armon]

That just means that you are not required to recall conceptual content specific to planes. However, it doesn't mean that it is ruled out from the "application" side of the syllabus.

It is possible for an exam question to guide you into doing a vectors question on planes by derivation. For example, given vectors parallel and perpendicular to the plane, they may ask you to derive the Cartesian equation of a plane. Technically, you are just using tools you already know within the syllabus (i.e. the dot product) and just applying it to an unseen problem. However, they cannot ask you to quote the equation of a plane upfront, because that is not explicitly in the syllabus.

Another example is repeated factors in partial fractions. Technically, it is not in syllabus but that never stopped it occasionally appearing in the HSC exams. This is because the exam question must tell you the structure of the partial fractions for repeated factors and you need to be guided into deriving it by using tools that are within syllabus. However, you are not expected to recall the structure of partial fractions when there are repeated factors, because that is outside the syllabus.

What the word "plane" even means is is not in syllabus, so unless its heavily scaffolded your suggestion that they derive the cartesian equation of the plane through the point normal form is silly. Unless they explicitly give you the formula n.(x-a) = 0 lmao.

 

[Hejjwheh23]

bruh I start dropping marks at 13 idk what u talking bout full from 11-15

Ahaha, exactly, that's facts.

 

[Armon]

Hi, I want to know if its possible for me to get 97+ scaled in 4u this year. The reason I ask this is because the tests are getting harder each year and that just makes me certain regarding my ability to perform in the exam. These are my results in past HSC papers I have done:
2020 - 96
2021 - 80
2022 - 83
2023 -83

Nah more around a 95-6ish than 97 with those raws. Plus you have to account for there being mores stress in the exam

 

[user1207]

occasional mark drops at 12 as well and if the day is not good 11 also happens

it happens, not the end of the world

 

[Armon]

Is not doing question 16 a conceivable strategy

Universal 4u experience. In all seriousness, still look at the qs! You might be surprised that some of the questions are way simpler than you'd think. I got more marks in q16 than in q15 in my year

 

[K2Trappy]

Is not doing question 16 a conceivable strategy

a lot of the times there are free 3ish marks on 16 for like subbing in numbers so don't just not even look at it but yh I leave some of it unattempted id rather make sure I didn't do anything stupid on 11-13 and do some harder 14-15 then just waste and prob still get 0 for 16

 

[Dontcallmedude]

Nice to see everyone is active on the day before the exam

 

[appleali]

guys i been getting around high 80s for some trial papers (nsb, sths, ruse)
how difficult are these papers in comparison to hsc?

 

[C2H6O]

guys i been getting around high 80s for some trial papers (nsb, sths, ruse)
how difficult are these papers in comparison to hsc?

I find most trial papers from those schools to be somewhat harder than the HSCs, if you're getting high 80s that's sounding optimistic

 

[appleali]

I find most trial papers from those schools to be somewhat harder than the HSCs, if you're getting high 80s that's sounding optimistic

class
although it’s worth mentioning the sths one was comparatively quite easy

 

[C2H6O]

class
although it’s worth mentioning the sths one was comparatively quite easy

May I ask which years those papers are from?

 

[Trebla]

What the word "plane" even means is is not in syllabus, so unless its heavily scaffolded your suggestion that they derive the cartesian equation of the plane through the point normal form is silly. Unless they explicitly give you the formula n.(x-a) = 0 lmao.

Actually, the word "plane" is used everywhere in HSC Maths e.g. "complex plane", "x-y plane" or "inclined plane". It's even in one of the vector topic dot points:

Seems pretty obvious that students are expected to know what the word "plane" actually means.

Even if they don't explicitly use the word "plane" there is no reason why they can't just synonymously label it as a region or a set of points in the number space that satisfies a set of conditions.

What I mean in my earlier post is that there is nothing stopping them technically asking something like this:


If we honestly think they can't use the word "plane", then what's stopping them replacing the word "plane P" with "region R" or "a set of points P"?

The point is that students can answer this question with the tools they have within the syllabus and it doesn't require knowledge outside the syllabus (i.e. notice it's not asking you to recall the equation of a plane). All you need to do is compute the dot product of two perpendicular vectors (with a bit of work to figure out what those vectors are) to derive the result. This is simply an "application" of something in the syllabus to explore something unfamilar.

If you want to dismiss this as being "outside of syllabus", then you do so at your own risk. The HSC exams have time and time again proven otherwise throughout history because they can sneakily lean on this "application" side of the syllabus (which is why Ext2 has this reputation for being so challenging in the first place).

 

[appleali]

May I ask which years those papers are from?

23

 

[appleali]

Actually, the word "plane" is used everywhere in HSC Maths e.g. "complex plane", "x-y plane" or "inclined plane". It's even in one of the vector topic dot points:
View attachment 45037
Seems pretty obvious that students are expected to know what the word "plane" actually means.

Even if they don't explicitly use the word "plane" there is no reason why they can't just synonymously label it as a region or a set of points in the number space that satisfies a set of conditions.

What I mean in my earlier post is that there is nothing stopping them technically asking something like this:
View attachment 45039

If we honestly think they can't use the word "plane", then what's stopping them replacing the word "plane P" with "region R" or "a set of points P"?

The point is that students can answer this question with the tools they have within the syllabus and it doesn't require knowledge outside the syllabus. All you need to do is compute the dot product of two perpendicular vectors to derive the result. This is simply an "application" of something in the syllabus to explore something unfamilar.

If you want to dismiss this as being "outside of syllabus", then you do so at your own risk. The HSC exams have time and time again proven otherwise throughout history because they can lean on this "application" side of the syllabus (which is why Ext2 has this reputation for being so challenging in the first place).

at this point is it worth it learning it