General Thoughts: Mathematics Ext 1 (1 Viewer)

[Rawf]

kill chem !

Yeah man, I'm gotta motor through business stuff tonight, hopefully get a 90-95HSC mark for it
Then I'ma have more than a week to dedicate to chem. should be good hopefully i get an HSC mark of 95 for chem too. Calculating my ATAR a while back ago, I dont think 3U will count but even if I get an E2 I'll have 1 bonus point into my course Im ranked 27 in my school outa like 85 kids, and my friend last year (went to our school) was ranked in the bottom 10 and she still raked in a E3 so eh, 2+ bonus points?

 

[Timske]

you change the equation into Rcos(nt-whatever) = -5
then you work it out. I got 1.5 seconds or something like that (i probably solved it wrong knowing myself)

yeah i got like 2. something

 

[Nws m8]

talking about answers now will only drive you self-esteems lower. it's done. get over it and go pepper your angus' for Phys and Chem

 

[school4nerds]

Did anyone else find it as hard as me?
I'm all alone

i found it difficult too and didnt see last page til last 10 minutes. i may ahve lost about 25 marks im wondering if i can still make e4 cutoff, my rank is 22/50 at a school in top 15.

 

[Nws m8]

i found it difficult too and didnt see last page til last 10 minutes. i may ahve lost about 25 marks im wondering if i can still make e4 cutoff, my rank is 22/50 at a school in top 15.

fuck you

 

[Nws m8]

Listen ^^ and chill You got 9 days for Physics

 

[Rory525]

what was 13 d part ii?

 

[GoldyOrNugget]

what was 13 d part ii?

Is that the C(t) = 0.3 question? It was 22.7 iirc.

 

[RishBonjour]

Is that the C(t) = 0.3 question? It was 22.7 iirc.

yep. glad I got that right.

What did you guys get for the last last question?

 

[chriss95]

I got an answer which corresponded with others, it was somewhere around 70-80 degrees

fuckkkkkkkkkkkk. because sinx = sin(180-x)

 

[hsc2012la]

Is that the C(t) = 0.3 question? It was 22.7 iirc.

shit, i got like 21 something..

 

[GoldyOrNugget]

For the projectile, 66.97 deg <= @ <= 75 deg. For the rates/plane, the first part could be proved using cos rule and Pythagoras, and for the second part I got something that looks like



Though I might have gotten the signs or cos/sins mixed up.

 

[Nws m8]

Exam was easy but sillies will drag down the band E4 cut off

 

[Rafy]

Please keep discussion related to solutions and specific questions to the relevant stickied thread

.

 

[Nws m8]

For the projectile, 66.97 deg <= @ <= 75 deg. For the rates/plane, the first part could be proved using cos rule and Pythagoras, and for the second part I got something that looks like



Though I might have gotten the signs or cos/sins mixed up.

wtf ^^^

 

[RishBonjour]

For the projectile, 66.97 deg <= @ <= 75 deg. For the rates/plane, the first part could be proved using cos rule and Pythagoras, and for the second part I got something that looks like



Though I might have gotten the signs or cos/sins mixed up.

I got that for the last question. but I think I left it as u :/ (can't remember, maybe subbed it in, U was 30 i remember)

that projectile...

 

[school4nerds]

fuck you

why? losing 25 marks would be bad, also idk how much my rank would save me so..

 

[hsc2012la]

Found the paper easier than past papers 2011, 2010 etc however for question 14 I couldn't prove that they triangles were congruent! >:O I had the hypotenuse, side but I couldn't prove the 90 degree angle in triangle MXS. Could someone help me with that?
Also had trouble with b iii, my angles didn't overlap i had angles ranging from 15<theta<23? and x>50 for the height equation. AND I couldn't do anything from part C
SO IF ANYONE COULD DO ANY OF THESE QUESTIONS PLEASE FEEL FREE TO LET ME KNOW HOW YOU DID IT

 

[Nws m8]

why? losing 25 marks would be bad, also idk how much my rank would save me so..

u go to fkin top 15 ranked sckool! Jeeezzz

 

[deswa1]

Did you guys get n is divisible by 4 for that one on the non-zero constant term?