2026 HSC CHAT (1 Viewer)

[jane1820]

For reference this is what i drew

 

[Shavi Masee]

For reference this is what i drew
View attachment 44363

I got 261.08km. Dont mind the multiple drawings of the triangle

 

[IStrokeItDaily69]

ok

 

[Shavi Masee]

View attachment 44362
can anyone help me w a? I drew the bearing and i got that
sin90 = 200/x
since x is the hypotenuse but the answer im getting is 200 which is wrong for two reasons, the answer says that the answer is 200-something n the hypotenuse cant have the same distance as a different side (logic)

Why are you using sin 90?
The 40 degrees is an alternate angle and therefore you have to use cos40 right?

 

[jane1820]

Why are you using sin 90?
The 40 degrees is an alternate angle and therefore you have to use cos40 right?

Yh i realised that later bc i thought that the 200km was the hypotenuse before n x would be the ‘opposite’

 

[ellurbee]

Yh i realised that later bc i thought that the 200km was the hypotenuse before n x would be the ‘opposite’

Every single time we did trig in Math I would always confuse sin and cos for some reason- it always stuffed me until right before my exam where i nearly ran out of time cause i kept on double checking all my triangles-

 

[ellurbee]

Anyone a Formula 1 fan here?

 

[WeiWeiMan]

Every single time we did trig in Math I would always confuse sin and cos for some reason- it always stuffed me until right before my exam where i nearly ran out of time cause i kept on double checking all my triangles-

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

 

[Shavi Masee]

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

They're doing ext 1 I think

 

[jane1820]

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 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

 

[Shavi Masee]

What did you get for the second one. Nah but i'm actually cooked so yea i cant really help you sry

I think it would be 200tan(40) = O ------ chuck that into ur calculator
O (opposite), 200 (adjacent) so u gotta use toa

167.82
I think I made a mistake somewhere though

 

[Shavi Masee]

oh.. bruh what wait i splited it into two parts from the first bit and added the lengths. bruh im so retarded

Dont say that word pls

 

[hellowellohehe]

View attachment 44362
can anyone help me w a? I drew the bearing and i got that
sin90 = 200/x
since x is the hypotenuse but the answer im getting is 200 which is wrong for two reasons, the answer says that the answer is 200-something n the hypotenuse cant have the same distance as a different side (logic)

a) 200/cos(40) = 261.08
you drew it correctly but you cant use sin90...

did u get b?

 

[hi_998]

If you're unathletic js say that

pdh is common sense i dont think its important to study for it, if u struggle with pdhpe then i respect that, but its basic knowlegde aint no way u needa put effort and importance into that

 

[Shavi Masee]

pdh is common sense i dont think its important to study for it, if u struggle with pdhpe then i respect that, but its basic knowlegde aint no way u needa put effort and importance into that

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

 

[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