HSC Extension 2 Mathematics Predictions / Thoughts (3 Viewers)

[Speed’o’sound Sonic]

If they "force" you to use a certain method they must provide enough details for you to discern what the method is, and then it becomes easier (e.g they cannot say using complex numbers integrate etc)

Yeah, I know. Just would be interesting to see them throw it at us.

 

[shashysha]

how you guys gonna prepare for the last day of prep tomorrow? I've done most trial papers do idk what to do anymore lol

 

[vinlatte]

how you guys gonna prepare for the last day of prep tomorrow? I've done most trial papers do idk what to do anymore lol

I have a bunch of smarter math papers from past hsc exams that I'm planning to complete a second time.

 

[beetree1]

I have a bunch of smarter math papers from past hsc exams that I'm planning to complete a second time.

do u wanna share these papers pleaseeeeeeee

 

[shashysha]

do u wanna share these papers pleaseeeeeeee

i agreeeee

 

[Speed’o’sound Sonic]

how you guys gonna prepare for the last day of prep tomorrow? I've done most trial papers do idk what to do anymore lol

Tomorrow will just be looking over syllabus and NESA sample paper one last time. Wanna keep loose day before exam

 

[vinlatte]

do u wanna share these papers pleaseeeeeeee

I don't have a digital copy :c
since I just ask my teacher to print them out, sorryy

 

[shashysha]

morning of the exam and i am not feeling good about this one lol

 

[Speed’o’sound Sonic]

morning of the exam and i am not feeling good about this one lol

We got this guys!

 

[Salad Man]

Q16 will be on vectors

 

[totally_screwed]

good luck everyone!!!

 

[Speed’o’sound Sonic]

Q16 will be on vectors

Hope not wouldn’t be surprised though. Good luck lads!

 

[Salad Man]

Hope not wouldn’t be surprised though. Good luck lads!

There was a huge influx of vector question being asked yesterday on discord. If theres anything English has taught me for the past 6 years, its foreshadow.

 

[shashysha]

There was a huge influx of vector question being asked yesterday on discord. If theres anything English has taught me for the past 6 years, its foreshadow.

line of intersection between spheres type beat

 

[vinlatte]

morning of the exam and i am not feeling good about this one lol

At least we have some time to revise before the exam. You got this!!

 

[Xanthi]

Is there actually a way of solving the intersection between 2 spheres using vectors?

 

[Speed’o’sound Sonic]

Is there actually a way of solving the intersection between 2 spheres using vectors?

Convert to Cartesian and equate to find values of X, Y and Z

 

[Xanthi]

Convert to Cartesian and equate to find values of X, Y and Z

Yes but strictly speaking that isn't a vector method.

Also sometimes it gets really ugly?

E.g (x-1)^2+(y)^2+z^2=25
And (x-2)^2 (y+2)^2+(z+1)^2= 36 would be extremely hard to solve

 

[Speed’o’sound Sonic]

Yes but strictly speaking that isn't a vector method.

Also sometimes it gets really ugly?

E.g (x-1)^2+(y)^2+z^2=25
And (x-2)^2 (y+2)^2+(z+1)^2= 36 would be extremely hard to solve

Yeah. Sadly ugly just happens sometimes. Not sure how you’d use vectors, however there is a method I would recommend. Finding the ratio of r1 to r1 you can find the perpendicular line that separates the circles in the ratio r1:r2 or something along those lines. Would be a lot easier with working paper

 

[shashysha]

Good luck guys, I'll see you here at 5pm in tears