Class of 2025 (2025 HSC CHAT) (19 Viewers)

[Dzeeshr]

had anyone figured the answer to the last question in the maths adv cssa? or did someone already did and i just couldn't be bothered to read the history of this discussion.

if I remember correctly we had y=x^2 and y=ln(x)+k. I just differentiated both functions and made them equal to one another and solved for x. Because the tangent at A is the same gradient for both curves. With the x co-ord you can sub back into x^2 and you have the (x,y) of point A and it all flows from there. can find k as such. the 2nd part with the integral was simple once you had k.

 

[hardstuck10th]

Sorry I didn't mean it as like 'special needs' I just meant that some people are good at better at english or worse at biology or something

na no coming back from wat u said she deep fried you with that response tho maybe if you get a 99 atar you can get your get back

 

[hardstuck10th]

socialism seen a moment ago hazzrat a moment ago hop off my case

 

[Scryne]

You guys reckon I could still pull off a raw score of 70 in math standard assuming I averaged 50 in internals and got an 80 in the HSC?

 

[hardstuck10th]

fucking moderating at 9:11pm people were doing greater feats at 9:11 bro

 

[qweeosh]

if I remember correctly we had y=x^2 and y=ln(x)+k. I just differentiated both functions and made them equal to one another and solved for x. Because the tangent at A is the same gradient for both curves. With the x co-ord you can sub back into x^2 and you have the (x,y) of point A and it all flows from there. can find k as such. the 2nd part with the integral was simple once you had k.

differentiation makes sense, I unfortunately didn't think of that. Thank you!

 

[Dzeeshr]

differentiation makes sense, I unfortunately didn't think of that. Thank you!

you either see it or you don't, thats the annoying part.

 

[mickeyd_357]

if I remember correctly we had y=x^2 and y=ln(x)+k. I just differentiated both functions and made them equal to one another and solved for x. Because the tangent at A is the same gradient for both curves. With the x co-ord you can sub back into x^2 and you have the (x,y) of point A and it all flows from there. can find k as such. the 2nd part with the integral was simple once you had k.

thats what I did as well
@Dzeeshr do you think you got anything wrong

 

[Dzeeshr]

thats what I did as well
@Dzeeshr do you think you got anything wrong

probably not. aside from transcription errors, or misreading questions. Q9 or 10 may have messed up though.

 

[Kat.crazi]

just differentiated both functions and made them equal to one another and solved for x

Damn… did this tho but solved for A instead of X what was I thinking (subbed A in too early idek how)

 

[ashleyashley]

if I remember correctly we had y=x^2 and y=ln(x)+k. I just differentiated both functions and made them equal to one another and solved for x. Because the tangent at A is the same gradient for both curves. With the x co-ord you can sub back into x^2 and you have the (x,y) of point A and it all flows from there. can find k as such. the 2nd part with the integral was simple once you had k.

i did that but i kept getting 0.47... instead of 0.04... i spent like 30mins staring at my page trying to figure out where i went wrong and i never found out why
oh well at least i got 2 or 3 marks for it

 

[Kat.crazi]

Our school gave replacement questions for stuff we hadn’t done and I found those harder than a lot of questions on the actual paper bruh

 

[fluffy_unicorns]

I didn’t think of solving with the derivatives i still wrote the intergrals, but couldnt complete solving them ofc bc i didn’t have A or k. Hopefully i’ll still get a mark or two still tho

 

[reniiiblaseee]

You guys reckon I could still pull off a raw score of 70 in math standard assuming I averaged 50 in internals and got an 80 in the HSC?

depends on ur rank, could either get u a 60 internal or 85 internal, all depending on how ur cohort performs

 

[reniiiblaseee]

can i cover a whole years worth of biology content in one day

 

[Kat.crazi]

can i cover a whole years worth of biology content in one day

Girl if u can’t I can’t
and I have an exam the day before

 

[alphxreturns]

can i cover a whole years worth of biology content in one day

yes, as the wise man once said

"hsc biology is designed to be memorised in one night" - abraham lincoln 1858

 

[Kat.crazi]

in one night

Heavy on the night aspect

 

[alphxreturns]

Heavy on the night aspect

"often the greatest people, like abe lincoln, were night owls" sun tzu, art of war, 140 B.C

 

[Scryne]

depends on ur rank, could either get u a 60 internal or 85 internal, all depending on how ur cohort performs

Well as of now I'm sitting at 49/75, I'm assuming it wouldn't change or potentially get worse after trials.