2026 HSC CHAT (1 Viewer)

[hi_998]

i never said I wasn't good at it, cuz ur right it's just common sense.
I don't need to get really high rankings for it in the yearlies because it's just not a priority T-T

oh bro i was talking to @IStrokeItDaily69 for being special

 

[Shavi Masee]

oh bro i was talking to @IStrokeItDaily69 for being special

Oh mb I took it the wrong way sorry T-T

 

[ellurbee]

SOH CAH TOA bro
another neat way to remember it is like
if you consider the unit circle,
sin(x) represents the y value, cosx represents the x value and tanx represents the slope of the line
cotx is just 1/tanx, cosecx = 1/sinx {confusing innit}, secx = 1/cosx

what math ru doing for yr11/12

I'm doing advanced and Ex 1 like Shavi said-
I DO SOH CAH TOA BUT I ALWAYS READ THE DIAGRAM WRONG-
And we literally have a yearly coming up and I'm so screwed-

 

[WeiWeiMan]

I WANNA DO EXT 2 MATH BC MATH JUST COMES SO NATURALLY TO ME I LOVE IT
Everyone is saying not to judge too early bc yr 10 math is always always the easiest junior math n yr 11 math is gonna humble me idk tho but im aiming for ext 2 bc i love math so much

erm i didn't even ask you
jokes
ngl if you're doing well in yr10 5.3 and find it that easy, yr11 should be chill for you
if you're naturally good at math and genuinely love it, I reckon you should do ext 2.

 

[jane1820]

erm i didn't even ask you
jokes
ngl if you're doing well in yr10 5.3 and find it that easy, yr11 should be chill for you
if you're naturally good at math and genuinely love it, I reckon you should do ext 2.

Yh i havent gotten below 90% so far in 5.3 except the last exam but thats bc i didnt have enough time (BRO WHEN I GOT THE TEST BACK N I REREAD THE TEST I COULDVE GOTTEN EASY 95% istg if i just had extra 10 min )
fingers crossed bc everyone in yr 11 ext math is STRUGGLING like i think only 4/14 ppl passed w only one 90% which is an accelerated student im not so sure but if i do do good in ext 1 im definitely doing ext 2

 

[ellurbee]

When is a responsible time to start studying for yearly exams- Holidays just started but I don't wanna leave things to the last minute.

 

[jane1820]

When is a responsible time to start studying for yearly exams- Holidays just started but I don't wanna leave things to the last minute.

My yearlies r in week 3 n i hvae left ALL MY STUDIES IN MY LOCKER except science n math n im so annoyed bc HOW TF DID I FORGET
im gonna start studying now for math n science so i can revise later n use some online resources to study for the rest of my subjects considering i dont physically have them UGH

 

[jane1820]

also did u guys hear abt the diddy thing? CRAZY DRAMA even tho im not interested n i seriously dont care its a bit scary ngl

 

[Shavi Masee]

also did u guys hear abt the diddy thing? CRAZY DRAMA even tho im not interested n i seriously dont care its a bit scary ngl

What is it?
Nvm searched it up. I hope he rots in jail.

 

[jane1820]

What is it?
Nvm searched it up. I hope he rots in jail.

Nah brother is crazy
idk if u have any social media but conspiracy tiktok hitting hard w their theories

yk i deadass think jonathan enjoyed the whole thing ngl (he seems like someone who loves drama between rappers)

 

[jane1820]

Can anyone do this question (5.a.) for me? (Using the sine rule for finding angles)
View attachment IMG_7293.jpeg

 

[jane1820]

Can anyone do this question (5.a.) for me? (Using the sine rule for finding angles)
View attachment 44383

Apparently the answer is “75 degrees or 117 degrees”
Though i dont see how it can be 117 degrees considering the question says that theta is acute

 

[ellurbee]

Apparently the answer is “75 degrees or 117 degrees”
Though i dont see how it can be 117 degrees considering the question says that theta is acute

What answer did you get? Just 75 or something else?

 

[isho-3]

Can anyone do this question (5.a.) for me? (Using the sine rule for finding angles)
View attachment 44383

sina/8 = sin42/6
a = sin^-1(8sin42/6)
a = 63.14...
theta = 180 - 42 - 63 = 75

yeah, it's 75 degrees. for this question, don't use the sine rule twice; the theta is not the subject of the sine rule in this equation, and therefore can be solved by simply using the missing angle formula for triangles with two known angles.

 

[ellurbee]

Ha

Apparently the answer is “75 degrees or 117 degrees”
Though i don't see how it can be 117 degrees considering the question says that theta is acute

Have you heard of the Ambiguous case?
*I'm looking at my notes and Ambiguous means 'not clear' or 'undecided' meaning that B could have two answers- an acute answer or an obtuse answer*

 

[jane1820]

What answer did you get? Just 75 or something else?

I got 63 degrees
i did the following steps: (also i swear my handwriting looks better on paper )

 

[isho-3]

Ha

Have you heard of the Ambiguous case?
*I'm looking at my notes and Ambiguous means 'not clear' or 'undecided' meaning that B could have two answers- an acute answer or an obtuse answer*
View attachment 44384

yeah this is valid,,,,, but i don't think they'd use an ambiguous case in tests? at least, if they are, it'd be a bit of a dirty trick. the question in the (i'm assuming) textbook is pretty open, and you'd probably have to ask later in the test (if they include something like it) about whether they want you to solve the theta for the given triangle or the given information

 

[jane1820]

sina/8 = sin42/6
a = sin^-1(8sin42/6)
a = 63.14...
theta = 180 - 42 - 63 = 75

yeah, it's 75 degrees. for this question, don't use the sine rule twice; the theta is not the subject of the sine rule in this equation, and therefore can be solved by simply using the missing angle formula for triangles with two known angles.

Hmm but why did u do that? (Im not even up to there i just skipped a few chapters to the sine rule so can u educate me a little?)

 

[jane1820]

Ha

Have you heard of the Ambiguous case?
*I'm looking at my notes and Ambiguous means 'not clear' or 'undecided' meaning that B could have two answers- an acute answer or an obtuse answer*
View attachment 44384

Yh but the question says that theta is an acute not like it didnt specify (?)

 

[isho-3]

I got 63 degrees
i did the following steps: (also i swear my handwriting looks better on paper )
View attachment 44385

you missed a step; the answer you got is correct, but it's not what you're solving for. you got the 2nd unknown angle in the triangle, but not the value of theta itself. from here you need to solve for theta using missing angles in a triangle w/ 2 known angles (180 - 63 - 42 = 75). basically you weren't wrong in the answer for the other unknown angle (i've dubbed angle 'a' in my solution), but forgot to solve for theta afterwards.