General Thoughts: Mathematics Extension 2 (3 Viewers)

[mreditor16]

Same.

you agree with all numerical answers?

if so, I am so fkin happy

 

[LandCo]

Last years paper was way easier.
I swear man.
Fml.
Laters unsw :\

 

[tomnomnom696]

you agree with all numerical answers?

if so, I am so fkin happy

i got the same as well excpet i might have screwed up 13b loool oh well

 

[mreditor16]

i got the same as well excpet i might have screwed up 13b loool oh well

omg I am so fkin happy, no sillies without checking

hoping, just need to confirm with carret's solutions

 

[IR]

omg I am so fkin happy, no sillies without checking

hoping, just need to confirm with carret's solutions

Dw bro. Ur good. What do u think you got /100?

 

[mreditor16]

Dw bro. Ur good. What do u think you got /100?

not sure yet, will wait for Carret's solutions and then will post my prediction in the "predict your mark thread"

 

[IR]

not sure yet, will wait for Carret's solutions and then will post my prediction in the "predict your mark thread"

Orite

 

[IR]

quite obviously yes
i read "minimum" instead of "maximum"

Dw I did similar for other questions in mc

 

[BiasedBuffalo]

I got wrecked, probably something in the 70s. I thought the start was much harder than most of the past papers, and they skipped the classic giveaways like roots of unity, induction etc.

 

[QZP]

for 13cii) I said that if PQ is tangential to hyperbola at M then gradient of PQ = gradient of tangent at M. And then I showed that. Is this a valid "proof"? Will I lose marks for bad style?

 

[bishay]

could someone post the solutions ?

 

[Carrotsticks]

for 13cii) I said that if PQ is tangential to hyperbola at M then gradient of PQ = gradient of tangent at M. And then I showed that. Is this a valid "proof"? Will I lose marks for bad style?

That isn't valid because you showed that PQ is parallel to the tangent, but it doesn't necessarily touch the hyperbola.

 

[gahyunkk]

That isn't valid because you showed that PQ is parallel to the tangent, but it doesn't necessarily touch the hyperbola.

What if u also have mentioned that PQ has a midpoint M thus PQ passes through M?

 

[Carrotsticks]

What if u also have mentioned that PQ has a midpoint M thus PQ passes through M?

That isn't a property that can just be stated.

 

[RealiseNothing]

No perms and combs or probability?

Good luck in 3U guys, have fun hahahahahha

 

[dan964]

View attachment 31136
the paper is attached

 

[QZP]

That isn't valid because you showed that PQ is parallel to the tangent, but it doesn't necessarily touch the hyperbola.

But it's given that M is the midpoint of PQ and also M lies on the hyperbola from (i)

 

[IR]

That isn't a property that can just be stated.

It gives you in the paper

 

[Carrotsticks]

What? They told you this? Oh dear I didn't read the question, that's fine then =)

 

[RealiseNothing]

That conics question would have been so much better if the last part was: