HSC Extension 2 Mathematics Predictions / Thoughts (4 Viewers)

[YonOra]

Man this exam got me stressing a bit... don’t want to dwell on it but I’ve got 10 days before my next exam and nothing to distract me
Really wanted that state rank but now just worrying about every question hoping I got 100%

stressing about getting 100%

 

[idkkdi]

Yeah luckily got it out the way last year. You guys got this

yo why didn't u retake 3u for state rank possibility?

 

[Speed’o’sound Sonic]

yo why didn't u retake 3u for state rank possibility?

Honestly the thought didn’t even cross my mind. My school doesn’t really allow retaking courses and my 47/50 was enough to scrape by a projection for the course I want. Also only started getting really competitive at maths like halfway through this year haha

 

[idkkdi]

Honestly the thought didn’t even cross my mind. My school doesn’t really allow retaking courses and my 47/50 was enough to scrape by a projection for the course I want. Also only started getting really competitive at maths like halfway through this year haha

what course? med?

 

[Speed’o’sound Sonic]

what course? med?

Yep sure thing

 

[black.mamba]

How long does it usually take for the paper (and answers) to go up?

 

[Speed’o’sound Sonic]

How long does it usually take for the paper (and answers) to go up?

Depends how long it takes for Matrix to get their hands on it. Last year it was after like 2 hours lol. I guess they should be out in the next few days

 

[Trebla]

You guys aren’t allowed to keep the question paper?

 

[Speed’o’sound Sonic]

You guys aren’t allowed to keep the question paper?

Do you have it?

 

[shashysha]

Just remembering now for Q4 multiple choice, is there even a correct answer? (the position of z one) cause it wasn't given that it was a unit circle or a circle of any radius

 

[Speed’o’sound Sonic]

Just remembering now for Q4 multiple choice, is there even a correct answer? (the position of z one) cause it wasn't given that it was a unit circle or a circle of any radius

Yeah the circle represented the modulus of Z. The answer was C I think; it had double the argument and the same modulus as Z

 

[black.mamba]

Just remembering now for Q4 multiple choice, is there even a correct answer? (the position of z one) cause it wasn't given that it was a unit circle or a circle of any radius

z^2/|z| = (|z|^2)*(cisa)^2/|z| = |z|*cis(2a) where z = |z|cisa

 

[Speed’o’sound Sonic]

wasn’t the one with double argument but same modulus a)??

Yeah it was. Sorry for the mixup

 

[shashysha]

damn changed A to C cause i was unsure rip 1 mark

 

[Speed’o’sound Sonic]

Well guys, it was good fun but sadly the state rank has gone out the window. A few silly mistakes has brought what could have been 100 down to what looks like a 96, or 97 if they’re generous. She’ll be right, still a decent mark

 

[Speed’o’sound Sonic]

hey, it’s no worries, i’ll be happy to switch my 50 for ur 96/97

thanks, I’m sure you did fine as well

 

[Fabrizio]

How did you guys do the proof for the pully question with mass 4m and 2m? I had no clue where to get the 3

 

[Speed’o’sound Sonic]

Nah they were all correct on there.

 

[black.mamba]

total mass = 6m (of the system) which was the denominator, and there was a factor of 2 you could remove from both top and bottom

 

[Speed’o’sound Sonic]

How did you guys do the proof for the pully question with mass 4m and 2m? I had no clue where to get the 3

So the ‘3’ came from the net mass of 2 to the right divided by the total mass of 6’in the system