Maths Extension 1 Predictions/Thoughts (2 Viewers)

[tywebb]

View attachment 50838
they left confidential in here, the hell does that mean? einstien files ahh

well spotted!

i didn't notice that. i don't think it's supposed to be there.

 

[coolcat6778]

TDS
They don't give marks for deriving the formulas lol

 

[BionicMango]

They say you should derive formulas as a safety net in case you mess it up right?
Also I’m pretty sure the given solutions aren’t necessarily a top band answer.

Not too much effort but annoying nonetheless.

 

[HrdTNm]

Did anyone noticed that the solution of this question's wrong? Accoriding to the DE the derivative cannot be negative,i.e. the function is increasing, while the solution is not mononic

 

[HrdTNm]

Also, if you draw a vector field, the solution would be like a piecewise function, which flats out when . Even if the markers can't see this, the step where integrate is incorrect, as you haven't check , and this condition is not necessary for the original differential equation

 

[tywebb]

piecewise function, which flats out when .

so this one

 

[justletmespeak123]

Also, if you draw a vector field, the solution would be like a piecewise function, which flats out when . Even if the markers can't see this, the step where integrate is incorrect, as you haven't check , and this condition is not necessary for the original differential equation

Hello sexy 2026 male, ur wrong

 

[tywebb]

Hello sexy 2026 male, ur wrongView attachment 50882

no he’s not

artificial idiocy is wrong

 

[BionicMango]

Did anyone noticed that the solution of this question's wrong? Accoriding to the DE the derivative cannot be negative,i.e. the function is increasing, while the solution is not mononic
View attachment 50878

You would have to restrict the domain to between pi/2 and -pi/2 inclusive, where it is defined which they left out

edit: wait the domain would be different bc of the horizontal translation, but you get the idea right (-pi/2 < x + pi/6 < pi/2)

 

[tywebb]

terry lee solutions https://advancedmathematics.com.au/resources/2025 Ext1.pdf

 

[justletmespeak123]

This isn't fucking English

 

[bigbird102]

Does anyone know what the raw mark for band 6 cutoff was for this yr. Like scaled to 90

 

[justletmespeak123]

52/70 exactly

 

[bigbird102]

52/70 exactly

how do u know

 

[lucas10champ]

aye bru how do u know

 

[justletmespeak123]

aye bru how do u know

NSW mathematics server said + I am certain I got 50/70 which became aligned to an 86 (yes it's very harsh alignment when u go to the e3 range as the raw mark vs aligned mark graph is VERY steep at that range). I was fully convinced I would get an E4 cause the general consensus was this exam was slightly harder than 2024, therefore I expected the cutoff to be lower (49). Just unlucky to have a strong cohort again, most likely attributed to more ppl doing extension 2.

It's impossible (if not very rare) to score an odd exam mark in the E3 range cause of the garbage format of exam (70 marks + 4 bands only).
Mathematics Advanced exams provide much more leniency in the band 5 range (1 raw mark = 1 aligned mark), whereas 1 raw mark lost in the E3 range corresponds to 2 whopping exam marks lost. This ultimately stopped me (and one other) from getting the E4 I really wanted (I would have, had I gotten an exam mark of 88 due to my higher assessment mark). In the end I got a 89 HSC mark. Quite sad... I only needed to answer 1 more easy mcq question correctly to secure an E4.

Well I'm glad I got to get a band 6 last year in maths advanced

 

[FellowMathsEnjoyer :D]

On the topic of bands 6 or e4, does anyone know when the offical raw mark database gets updated by chance??
Thanks!

 

[lucas10champ]

No idea but I think i got raw 60/70 and i got a 92 aligned exam mark

 

[FellowMathsEnjoyer :D]

OHH really, i calculated like 54/70 ish and got 92 (anyways nice job man)

 

[hi_998]

would the actual mx1 hsc be easier than my school exams if i go to a top 15, selective school