• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

Mathematics Extension 1 Predictions/Thoughts (1 Viewer)

Luukas.2

Well-Known Member
Joined
Sep 21, 2023
Messages
443
Gender
Male
HSC
2023
Can someone please but my conscience at ease, i spent 10 mins on that volume question and am properly about to neck myself
Simplification is not required / mandatory outside of "show" questions. Both one over root 2 and root 2 over 2 would be accepted, for example. I am confident that both + ln(1/3) and - ln3 would be accepted. Not changing 12 / 4 to 3 is careless, and leaving 4 / 12 instead of 1 / 3 isn't good either, but are these really worth a whole mark penalty when the expression is numerically correct? I'd doubt it.
 

=)(=

Active Member
Joined
Jul 14, 2021
Messages
647
Gender
Male
HSC
2023
Simplification is not required / mandatory outside of "show" questions. Both one over root 2 and root 2 over 2 would be accepted, for example. I am confident that both + ln(1/3) and - ln3 would be accepted. Not changing 12 / 4 to 3 is careless, and leaving 4 / 12 instead of 1 / 3 isn't good either, but are these really worth a whole mark penalty when the expression is numerically correct? I'd doubt it.
okie cool hopefully the marker is kind, cause i think i did the same thing in 4u lmao
 

Luukas.2

Well-Known Member
Joined
Sep 21, 2023
Messages
443
Gender
Male
HSC
2023
whatttt i did 😭😭 i had curve at 800pi and cylinder at 400pi
Maybe you expanded the as instead of as ? This would get the 800pi but miss the log term...
 
Last edited:

notme123

Well-Known Member
Joined
Apr 14, 2020
Messages
997
Gender
Male
HSC
2021
pretty sure q is either 1944 or 80 (not 81 or 1943) coz u gotta add one/ subtract one by the n-1 identity
no you just take the maximum of the bottom values, you dont add anything to them
 

tywebb

dangerman
Joined
Dec 7, 2003
Messages
2,206
Gender
Undisclosed
HSC
N/A

Attachments

Last edited:

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

Top