Mathematics Thread (1 Viewer)

[f7eeting]

did it @CirrusTheJet

this was a good question (i think this took me longer than it should have though)

 

[Jaros]

View attachment 52126
did it @CirrusTheJet

this was a good question (i think this took me longer than it should have though)

dang unc u write so much for ur solutions

 

[CirrusTheJet]

Nice! Now you have one more formula to refer to if you ever need it in the HSC.

I will probably post another projectile motion proof tomorrow (it won't be too hard).

 

[f7eeting]

dang unc u write so much for ur solutions

lol if i dont i usually lose track

 

[coolcat6778]

View attachment 52126
did it @CirrusTheJet

this was a good question (i think this took me longer than it should have though)

don't use tidles

nobody uses tidles besides NSW, Australia.

Put arrows above vectors -> instead

 

[Jaros]

im seeing more words than math symbols

 

[f7eeting]

don't use tidles

nobody uses tidles besides NSW, Australia.

Put arrows above vectors -> instead

thank you coolcat

 

[f7eeting]

im seeing more words than math symbols

tbh if i know im gonna post my solution i try and write more so it can be followed more easily (does this make me performative? )
if this was in an exam it would be very different

 

[CirrusTheJet]

Personally I find writing things down (especially for Physics) useful.

 

[Jaros]

yes ur being very performative (jk when it comes to exam my working out has actual words too)

 

[Jaros]

anyone wanna give this question a go?, idk how to solve it properly,
Question: Consider a curve in the first quadrants. The tangent at any point P cuts the x-axis at Q. Given that OP=PQ, where O is the origin, and that the point (1,4) lies on the curve, find the equation of the curve

 

[CirrusTheJet]

That might be a quadratic form equation. I will have a further look into it tomorrow (can't really think right now).

 

[Jaros]

its confusing me, all I was able to do was fprime(1)=-4/3, I can't seem to find the curve tho

 

[Jaros]

I have an idea, if it works ill post the solution

 

[CirrusTheJet]

I was thinking of using average gradients and instantaneous gradients in some ways. I will dive into it further tomorrow.

 

[Jaros]

I got it here it is, it was pretty hard @CirrusTheJet it wasn't that it was just integration,

 

[coolcat6778]

I especially hate the assholes who write an upside down A rather than for all

 

[coolcat6778]

its confusing me, all I was able to do was fprime(1)=-4/3, I can't seem to find the curve tho

bro u realise you could've just did f'(1)

 

[Dzeeshr]

anyone wanna give this question a go?, idk how to solve it properly,
Question: Consider a curve in the first quadrants. The tangent at any point P cuts the x-axis at Q. Given that OP=PQ, where O is the origin, and that the point (1,4) lies on the curve, find the equation of the curve

Spent half an hour trying to do this, and half an hour trying to decipher your solution, only to realise OP=PQ and not OP=OQ.
The lesson learnt: don’t do math tired, it wastes time…

 

[ineed99atar]

View attachment 52132

am I supposed to know how to do this in y11