Maths Extension 1 Predictions/Thoughts (1 Viewer)

[la_sportive]

nah the paper was definitely easy to maybe 91 right? and since 91/2 is 45.5, is that rounded up to a 46 (i do adv not ext 2)?

91-93 then
so yeah 46-47 either way

 

[igor9]

91-93 then
so yeah 46-47 either way

nah wtf that's crazy i genuinely thought there was no hope left for this subject and i'm walking away with an e4 externals surely not bah

 

[la_sportive]

nah wtf that's crazy i genuinely thought there was no hope left for this subject and i'm walking away with an e4 externals surely not bah

def e4 my bro

 

[igor9]

das a madness brev

 

[leclerc16]

how much would a 59/70 align to??

 

[la_sportive]

how much would a 59/70 align to??

Probably 93-95 tbh
I got 58 and I'm anticipating 47/50

 

[igor9]

Probably 93-95 tbh
I got 58 and I'm anticipating 47/50

oh so u repeated again this year to improve ur score?

 

[la_sportive]

oh so u repeated again this year to improve ur score?

yeah lol

 

[igor9]

bro what if someone gets like 44 internals and 45 externals suppose, that is not e4 right, that would be sad because i'm preparing for the worst since my internals look kinda dogshit rn

 

[la_sportive]

bro what if someone gets like 44 internals and 45 externals suppose, that is not e4 right, that would be sad because i'm preparing for the worst since my internals look kinda dogshit rn

they round up to 45
dw my internals aren't great either...

 

[igor9]

they round up to 45
dw my internals aren't great either...

would that still count as an e4 though, like on hsc ninja or whatever?

 

[la_sportive]

would that still count as an e4 though, like on hsc ninja or whatever?

yep!

 

[mohitmo]

how much would a 59/70 align to??

95 I think. You would need to break 60 in this exam to achieve 96.

 

[uart]

I just took a quick look at this test today. Some interesting question, and parts of Q14 are definitely pretty difficult.

Q14d has an interesting kink that I don't think any of the current solutions have captured. The question doesn't state that , though most of the solutions seem to assume that. I think we should take , as there is nothing in the question to suggest that downward projection of the particle is not allowed (and the other two quadrants are uninteresting as they are identical except for leftward motion instead of rightward).

Why this is interesting is that the solution to

is


However this is not correct, as for negative (downward projected particle) the distance from the origin is an increasing function of t for all .

The trick here is that the resultant equation,

must be positive definite (>0) for the case of positive , as the axis of symmetry (-b/(2a)) is positive and .

However, for the case of the axis of symmetry is negative, so it's not necessary for the quadratic to be positive definite (>0 for all t), as it only needs to be positive for . And all that's required to prove that is to note that for that all the coefficients are positive and therefore the quadratic is positive for all

This gives the overall solution

Hope that helps.

 

[harrowed2]

The itute solutions for the Extension 1 paper are here

https://www.itute.com/2024/11/02/free-download-2024-nsw-esa-mathematics-extension-1-solutions/

 

[bruhmoment.]

yo would i be fucked for e4 if my raw is 50/70. my internals are pretty decent ngl and even my rank rn is currently great, but i legit bombed that hsc exam so hard looking back at it. am i fucked

 

[mohitmo]

yo would i be fucked for e4 if my raw is 50/70. my internals are pretty decent ngl and even my rank rn is currently great, but i legit bombed that hsc exam so hard looking back at it. am i fucked

50/70 is an e4 in this exam.

 

[sly_lyepat]

the first & last time they gave it in the new syllabus was in 2020, so there might be a chance for this year ...??? idk but ill be shitting in my pantaloons if they actually do that . also i have this on perms & combs if u guys want

can you send the perms and combs please

 

[zackbekro123]

What does equivalent merit actually mean for the guidelines?

 

[skibidiohiorizz]

means skbidi