AQA Further Maths Paper 2

[patent ledge]

What do we thinks coming up?

@wintry meadow

@violet dock

@frigid smelt

@distant cape

i dont remember who does aqa

[patent ledge]

Do you guys think more complex numbers will come up

[violet dock]

probs a little year

yeah

[patent ledge]

i hope they dont do a big question on complex numbers

like a roots of unity one

actaully i dont mind that but

doyou think it will be like paper 1 where they was just loads of smaller questions

swear there was like 18 questions

[magic torrent]

Idm that but I'd hate a series one on complex numbers

[patent ledge]

ye same

i just couldnt remember what they are called

[frigid smelt]

Nah its gonna be less

Cuz they are gonna make it harder

So less questions but more marks I think

Anyway it's gonna have like 15+ regardless, it's usually around this always

[frigid smelt]

Yeah

[patent ledge]

i dont think it will be harder

maybe a little bit but not loads

[frigid smelt]

It's gonna be like last year

First paper ez

Then the second one harder

It won't be the same difficulty, no way

[patent ledge]

yeah i still need to do 2023

gonna do it tomorrow

i think if theres any hard question on 2023 they will reask them in a slightly easier way

/similar concepts

[frigid smelt]

Yeah

The tan5pi/12 ine

Is similar to what they asked in 2023

Basically the exact same thing

[patent ledge]

ye

i got that wrong😭

so stupdi

[frigid smelt]

Me too

[patent ledge]

there was like 17 marks already on complex numbers so there might not be any on paper 2

but since the number of questions each year seems to increase if there is like 16 questions they could be one more

i think there will be a coupled differential equation even tho there was lots previously

[patent ledge]

2 days

[frigid smelt]

There's literally nothing to do for pure 😭

[patent ledge]

ye

[patent ledge]

i didnt many paper 2s for paper 1 so i still have quite a few past papers to do

[patent ledge]

What does ACF mean?

[frigid smelt]

Any correct form

[patent ledge]

2023 paper 2 was quite hard

like time wise

there was a few questions where you could go down different roots

and it would mean they would take ages

like the 3 marker at the start

also q14

not that they were hard but not many marks

[frigid smelt]

Paper 1 or 2?

[patent ledge]

2

meant paper 2

not 3

[patent ledge]

Can someone explain how I’d find c and d?

@distant cape

@violet dock

@frigid smelt

@wintry meadow

[wintry meadow]

how is the method any different to a and b

@patent ledge

[patent ledge]

well they didnt use eigen vectors

is that the way?

[silent niche]

Fundamental theorem of calculus is coming up

[wintry meadow]

thats one way

[patent ledge]

for a and b i just thought about it

[silent niche]

Further maths people

[wintry meadow]

???

[silent niche]

What’s the best way to learn proof by contradiction

[patent ledge]

bro go somewher else

[wintry meadow]

idk its hardest topic

[wintry meadow]

okay theres a few methods

[patent ledge]

how would you do it

[wintry meadow]

invariant points you simply multiply by some coordinates x y z and set it equal to x y z

as they dont change

[patent ledge]

ye but what about lines and planes

[wintry meadow]

for lines id probably just do eigenvectors

[patent ledge]

or do they want line of invarent points?

[wintry meadow]

i think its the same thing id assume

[silent niche]

Cry bro

[wintry meadow]

line of invariant points can be found by doing eigenvectors

right

[patent ledge]

yeye

[wintry meadow]

there is another method that i know for 2x2 but its long

[patent ledge]

@wintry meadow this is just line of invarent points right

[wintry meadow]

yh id say so

for these u might just be able to spot it

idk about invariant plane tho

[patent ledge]

ye

[wintry meadow]

ive never seen q on it

maybe like

oh

u just do like

hm

[patent ledge]

reflections in like x=0 plane x=0 is invariant plane

but like

for c i didnt even know what the tranformation is

[wintry meadow]

for plane im thinking we multiply by x y z and find some conditions for it

that might nto work tho

give me a sec with it and then ill know

[wintry meadow]

id say that the invariant plane for c is just y = 0 x = 0

which page is that in the book?

[patent ledge]

5.2B i think

pg164

q13

[wintry meadow]

for d id say invairant line/plane y = x

ig cuz invariant lines in 3d without specifying the z coordinate just become planes

like in 2d y =x is a line but in 3d its a plane

the method i did was simply multiply the matrices by x y z and set equal to x y z

[patent ledge]

ok ty

[wintry meadow]

thats probably not the full way or 100% correct way

cuz it could possibly miss solutions

but im guessing its right cuz all numbers are 1 so no scale factors

[patent ledge]

ye

so

would the plane x=y

be a plane of invarent points

of a invariant plane?

[wintry meadow]

uh

i think in this case theyre all the same

cuz theres no scale factor

[magic torrent]

So what would you do to get p and q in this case?

[wintry meadow]

ill send sol in a sec but basically u transform some general coordinates into new coordinates and then sub those new coordinate values into the plane euqation and solve for p and q

[magic torrent]

That does make sense

But what actually is an eigenplane ?

[wintry meadow]

i actually have never heard of it

im solving it rn

i think i know

[magic torrent]

Oh

[wintry meadow]

is that edexcel q

i know how to get p, isolveed it

im not entirely sure abt q

i used online calcluator to find the eignevalues cuz i couldnt be bothered and got tihs

i think q = 6 would be answer

do u have the answers @magic torrent

[magic torrent]

It's AQA

Sure one second

It's from their FM book

p = 5 and q = 6

[wintry meadow]

no way where ???

ive never seen eigen planes before wtf

[magic torrent]

In this purple book

It's my schools textbook

I haven't either ngl

[patent ledge]

@magic torrent

can you send working out

[magic torrent]

The worked solution ?

[patent ledge]

ye

from what i understand an eigen plane can occure when you have an a repeated eigenvalue and each eigenvalue has a non parrallel eigen vector

[patent ledge]

ty

oh so they just guessed what the eigenvectors were

[magic torrent]

That's what it seems like

But I still don't get it tbf

It's fine

I can ask my teacher tmr

[patent ledge]

which bit

[magic torrent]

What's actually going on

Well I understand it , it's just not sure about the eigenvectors

[patent ledge]

Do you understand this

[magic torrent]

How did they know whixh eigenvectors

Lemme see

[patent ledge]

oh

[magic torrent]

Yes

[patent ledge]

well i think they just picked two non parallel vectors that are perpendicular to the normal of the plane so when you cross product them you would get the plane

i think

[magic torrent]

Hmm I see

[patent ledge]

wait

nm

thats waffle

so you know how you can have lines on a plane

i think they just picked two non parallel vectors that would lie on the plane

[magic torrent]

Ahh ok

[patent ledge]

and you can use them to get to any point on the plane

[magic torrent]

Yeahhh I get what you mean

Thank you

[patent ledge]

ye

[magic torrent]

There's literally that's the only q on eigenplanes in this book

[patent ledge]

yeye

i doubt it comes up

but if it did it would be really good because i doubt many people will have gone over it

[magic torrent]

Yep

[wintry meadow]

what does it mean by corresponding vectors?

[wintry meadow]

were there any series qs on paper 1?

[wintry meadow]

when doing centre of complex circles do we include an i?

would we write it as (3,4)
or centre 3+4i

[patent ledge]

im not sure😂

[patent ledge]

i dont think so

[wintry meadow]

i always thought it was like (3,4) but i just saw edexcel q where they did it was 3+4i

[patent ledge]

idk i think if they ask for centre its (3,4)

but not 100% sure

[wintry meadow]

eigenplane isnt on spec 99% sure, i dont think they can ask it

[patent ledge]

its in the aqa oxford textbook as well

[wintry meadow]

hm

is it old spec book

[patent ledge]

nah

2017

[wintry meadow]

textbooks do just add extra stuff tho

[patent ledge]

ye

[patent ledge]

Can you guys do part a?

[wintry meadow]

u want a solution?

[patent ledge]

nah its fine now

[patent ledge]

@wintry meadow

Try this one

swear its impossible

@frigid smelt

@magic torrent

[wintry meadow]

yh im struggling with that one

[patent ledge]

idk how to do it

@wintry meadow

thats the ms

but they subtracted aR2

i did not know you could do that

[wintry meadow]

wouldve taken me a bit to figure that out tbf

its just like minusing row 1 a few times

[patent ledge]

if a matrix is singular does that mean det M =0

im worried for this exam cos there was 12 days i feel like theres so much little stuff iv forgotten

well not forgotten

but its not at the front of my head

[cold scarab]

i reckon just do it @patent ledge

[patent ledge]

How do I do part c

[frigid smelt]

Everything on the right hand side of the y axis gets reflected

So

Something like this

The reason is

Can you see how

When you evaluate the negative x values i.e if you were to evaluate f(-2), the y coordinate will be = f(2) so will yield the same y coordinate as the positive side of that same number, if that makes sense ? ( So f(-2)'s y coordinate is the same as f(2)'s y coordinate) and same for all other postive and negative values, so it just reflects in y axis)

[patent ledge]

ahhh ok ty

[wintry meadow]

have they ever asked 2 simple harmonic motion q's

[silent niche]

Matrices

[wintry meadow]

?

[wintry meadow]

@patent ledge do u know

[patent ledge]

nah

they havnt

i doubt they will

[wintry meadow]

alr good

cba to do it

[patent ledge]

but maybe like a 3 marker or something

[wintry meadow]

probably multiple choice if they do

[patent ledge]

yeye

[wintry meadow]

no way they throw another entire q

havent gotten full marks on a single coupled de question lol

[patent ledge]

😂

they might do coupled de tho

[wintry meadow]

i know

its cuz i going fast making stupid errors

[violet dock]

I want a nasty but nice roots of polynomials w

[wintry meadow]

tbf i dont think theres a topic thats bad that could come up

[wintry meadow]

on specimen paper 1 and 2 there is 2 shm qs one on each paper

[patent ledge]

numerical methods

tellin ya

theres gonna be a nasty one

deriving the mid ordinate rule

bet thats on it

[modest bear]

it will be a nice one im pretty sure

[modest bear]

numerical method with second order is long icl

[patent ledge]

ye

[wintry meadow]

No way they ask this lol

You can't really even derive it, it's kinda just look at the graph and make rectangles

[hollow crow]

hey guys

how hard is a level further maths

[patent ledge]

will let you know at like 3:30

[wintry meadow]

Anyone done

I got the reduction q wrong

I did cos^n-2 not cos^n-1 lol

[distant cape]

Harder then the first one

[wintry meadow]

Yh defo

[distant cape]

What did u lot get for modulus of z with the smallest argument

[wintry meadow]

4 sqrt 3

I can't remember many qs

[shy moss]

that paper was not bad tbh

[wintry meadow]

The DE question my values for everything were horrible

[shy moss]

the complex number one was a bit ass tho

[wintry meadow]

Which

[shy moss]

the smallest argument thing

[wintry meadow]

that was not nice

I did some way but it wasted so much time

[distant cape]

Yh

At first I thought it wanted minimum value so I wasted a bunch of time on the complex argand diagram one

[distant cape]

U remember any of your values?

[frigid smelt]

Beauty of a paper

Made up for my uselessness on paper 1 hopefully

[frigid smelt]

I got it but calc wasn't giving exact values

[wintry meadow]

No but they were all fractions lol

Idk if I got that right 1

I got 0.6 for something tho

And 21/9

Can't remember

[shy moss]

i also struggled on the revolution about the y axis

its int x^2 dy right

[frigid smelt]

Yeah me tok

And lambda for the e^5x one was

[wintry meadow]

Ngl I just setup the integral and used my calculator

I'll probably lose a mark or 2 for that

[frigid smelt]

I don't remember but ye

[shy moss]

do you not have to rearrange for x or something

[frigid smelt]

I made the diff equation and skipped the rest

Didn't have the tjme

[wintry meadow]

Ye u rearrange for c

X

[shy moss]

i think they expected you too with the space they gave

[wintry meadow]

And then use the y values for the bound

It was 0 to 5/3 for y values

[shy moss]

yeah

oh well maybe ill get a mark for the limits

[wintry meadow]

I couldn't do the method of difference q

[shy moss]

oh YEAH

i forgot about that

that was so horrible

[wintry meadow]

H1ow did u do it

[shy moss]

i literally tried every number in the calculator for the second part

[shy moss]

i didnt

i spent the time on other questions

[wintry meadow]

Dis u do 3 partial fractions or 2

[wintry meadow]

224 I got

[shy moss]

3

[shy moss]

i got 71

[wintry meadow]

Idk

What was it

1/r(r-1)(r+1)

[shy moss]

yeah

[wintry meadow]

It was 0.24999

71 gives you just 0.2499

[shy moss]

thats for each term

it asked for the first number where the sum gave that

[wintry meadow]

Yh ik

https://www.mathsisfun.com/numbers/sigma-calculator.html

Try it there

Maybe I put it in wrong

[shy moss]

thats probably rounded

cus on my calc it gave it higher

[patent ledge]

Same I fucking did that this morning

[distant cape]

Yh

[patent ledge]

Did you guys answer everything

To many questions

[shy moss]

welp

i misread the number of 9s loool

[wintry meadow]

Attempted all but couldn't do 2 parts of qs

20 was so many lol

[violet dock]

Yeah but it was so time pressured

[wintry meadow]

I think cuz I got 10^-5

[violet dock]

I’m glad people agree cos like my friends were saying it was easy

But they slipped the complex numbers q

[wintry meadow]

Could u do method of differences

[violet dock]

Which took me AGES holy shit

[violet dock]

Yeh

224?

[wintry meadow]

Ye I mena part a tho

[violet dock]

oh yeah

[shy moss]

the actual questions were easier than paper 1 imo

but the time was a bit iffy

[violet dock]

Partial fraction it

[wintry meadow]

Nah

[violet dock]

Thank god someone else thought this

[wintry meadow]

Into 3 terms?

[violet dock]

Yeh

[wintry meadow]

I got like -1 1/2 1/2

as valued

[violet dock]

Ye same

[shy moss]

yeah i got that too

but i couldnt spot the pattern

[wintry meadow]

How did u cancel the terms then?

yh same

[violet dock]

Diagonally

U have to combine the 2 halves

And then like

With the whole -

It was +1/2 +1/2 -1

Basically

On the diagonal

[wintry meadow]

Crazy

Was ur DE values nice or not

[shy moss]

A and B were like 1/35 and 6/35

[violet dock]

medium

[violet dock]

I didn’t get that

[wintry meadow]

Nei1ther

mine were bad

like awfull1y bad

[shy moss]

idk i put it in the calculator and it worked

[wintry meadow]

Sounds right though ngl

[violet dock]

I got 10/63 and 1/175 for A and B and then for the PI I got 3/2, -3/5 1/10 and -8/225

Which my friend also got

For the PI

[wintry meadow]

That sounds right

I didn't get that

[shy moss]

your PI numbers are right

although idk about 3/2

[wintry meadow]

oh i think I put 0.6 not -0.6 which causes everything to be wrong

lol

[violet dock]

Either way method was clear

I managed to do the complex numbers one but took me FUCKING AGES

[wintry meadow]

Yh should be only 2 or 3 lost

[wintry meadow]

What was ur method

[violet dock]

Part b

Did anyone have a neat method

[wintry meadow]

I did discriminant with y=mx to find coordinate

And used distance formula

Cuz we had distance

Which gave x value, which gave y value

[violet dock]

ye I did that as well then got tan theta

Then put it in a triangle with that and 1

[wintry meadow]

Sin?

I did sin not tan

Urs works

I did sin cuz we had the hypotenuse which was the distance 4 sqrt 3 from prev part

[violet dock]

ye I did that as well but didn’t wanna sub back in to find coords

I found tan theta from gradient

[wintry meadow]

Makes sense

[violet dock]

Then just used a triangle and converted it to sun

Sin**

[wintry meadow]

was not a nice q

there's probably easier method

[violet dock]

Nah it took so long like it took all my checking time

[wintry meadow]

I didn't check anything I think

[patent ledge]

Ye fucking hell

[violet dock]

Yeah it annoyed me cos I felt I could do it a much neater method so I spent a lot of time trying to think about what would be neater

[wintry meadow]

Was the person wrong about the degree 3 right

[violet dock]

Yeah

[patent ledge]

Also

[violet dock]

Any odd degree

It could be

[wintry meadow]

I put could be 3 5 7 9 etc

[violet dock]

Yeh

[wintry meadow]

Yhyh

[patent ledge]

Cos all the other mocks were different question lengths you aren’t used to it

[violet dock]

I normally have like 1h of checking to chill

[patent ledge]

Like I think question 10 I’m almost done

[wintry meadow]

Ye I think we had highest

[violet dock]

But this time omds working to the end

[patent ledge]

So what do we think grade boy ada dies

[wintry meadow]

I lost marks on minimum 3 qs now

[violet dock]

Luckily there wasn’t an evil last q tho

[patent ledge]

Boundaries

Higher or lower

[wintry meadow]

Same ish

Paper 1 was very easy

[patent ledge]

Ye

[wintry meadow]

This I'd say was harder than last year

[violet dock]

Yeah probs same cos p2 lower p1 higher

My friends found this paper easy and p1 harder 😁😭😭😭

Which was weird

[wintry meadow]

fair

[patent ledge]

Ye same someone else said that

[wintry meadow]

like 15 qs were easy then 5 difficult

An1yone remember mcqs

I got 45 for 1 I think

[patent ledge]

Mcqs?

[wintry meadow]

At the start

[patent ledge]

Oh

Ye it was 45

[wintry meadow]

I don't remember others

[patent ledge]

I memorised that formula this morning

[violet dock]

Yeah wA

[wintry meadow]

Just gotta hope no vertical circular motion on mechanics now

[patent ledge]

Ye

I need to grind mechanics now

[violet dock]

No that’s so nice

[wintry meadow]

It's fine

Depends though cuz they word it so badly

[patent ledge]

The 2023 question on momentum was hard

I’d not done one like it before

[tribal heart]

I MISSED THE REDUCTION FORMULA QUESTION 💀💀

I didn’t realise it was there until a minute left

[wintry meadow]

Anyone know a b values for last q

I got a is 15

[tribal heart]

So I just scribbled the ibp to try get a mark 💀

[frigid smelt]

Yeye

[frigid smelt]

I have the solutuon

But it's a good question, yes

That mech paper is hard tbf

[patent ledge]

@frigid smelt did you think todays paper was harder or easier than paper 1

Sorry

Paper 1

[frigid smelt]

Me personally, harder , but I did better on this paper than paper 1

[patent ledge]

Ye

[frigid smelt]

Paper 1 I just made mistakes that's why

Stupid ones

[patent ledge]

Yeye

[frigid smelt]

How did you find it

[patent ledge]

Ok

Neither were hard

But this one was more time pressure

[frigid smelt]

Yeah

[patent ledge]

So definitely this one

For me

[frigid smelt]

Yh 20 questions in insane bruh

When I saw that I was like tf

[patent ledge]

Ye I didn’t get the reduction question as well so sad

[frigid smelt]

Part a or b?

[patent ledge]

I literally practiced it for sin and tan this morning

[frigid smelt]

I got a but not b

[patent ledge]

Nah couldn’t prove it

[frigid smelt]

Ah

[wintry meadow]

I'm so mad for not getting the reduction its so easy

[patent ledge]

Ye

[frigid smelt]

Was it because of mistakes or ?

[patent ledge]

Bluddy 9 marks

I just couldn’t do it

I was doing it the wrong way

[wintry meadow]

I just did cos^n-2 not -1

[patent ledge]

Yeye same I think

[frigid smelt]

It's -1 ye

[patent ledge]

Wait

[frigid smelt]

And it comes out beaituful

[patent ledge]

Was it I n-2

[frigid smelt]

Beautiful

[wintry meadow]

no

[patent ledge]

Omd

Like

Wait

So was it I n = In-2

[frigid smelt]

Yea

[patent ledge]

Was the subscript n-2

[frigid smelt]

In was on the left

[patent ledge]

Yeye

[frigid smelt]

And on the RHS I n-2 ye

[patent ledge]

Oh ok

[frigid smelt]

And n-1

I thunk

[fair echo]

Why Starbucks in background

[frigid smelt]

And this stupid calculator weren't giving me exact values for the argand diagrams one 🤣

I had to blag it and make it equal

[wintry meadow]

No eigenvectors qs

there was like 1 vectors q over both papers too

[frigid smelt]

So lucky

I hate eigen stuff

[wintry meadow]

Nah eigenvectors is so easy

[frigid smelt]

Ye but not the normal ones

The weird ones

[wintry meadow]

Was the vectors q like

b × a then u do that is equal to - a x b

[frigid smelt]

And also invariant planes n stuff I didn't even have time to learn so glad it didn't come up

[wintry meadow]

and -c×a = a×c

[frigid smelt]

Yes something like that

But also

Is

E.g.

8a × b = 8(a× b)

[wintry meadow]

I got an 8 I remember

[frigid smelt]

The a × b they give you, then you times it by 8?

[wintry meadow]

I did

[frigid smelt]

Ok good me too

[wintry meadow]

idk if ur allowed

Probably

It makes sense

[frigid smelt]

One sex

[wintry meadow]

then the a×a=0

[frigid smelt]

Yeyeye

Anyway it was a good paper

I don't remember any other qs

N the very last one

Idk where I'm supposed to get a pi from

Tf

Io = 1 ?

[wintry meadow]

No

Well yes

And then u integrate that

To get pi/4

and then do the formula 3 times

[frigid smelt]

Ohhhhh u integrate it

Duhhh

Thank you

💀💀

I didn't integrate it

I was thinking how am I supposed to sub jn pi/4 jnto one

🔥🔥

[violet dock]

I made an algebra mistake on the flipping maclaurin one

[frigid smelt]

How did you find it nola?

[violet dock]

Good very time pressured tho

Didn’t have that much time to check so probably fucked up some algebra:numbers

But the Qs weren’t bad

[frigid smelt]

Ohh yh also

For the Volume of revolution

Can you just put in calc?

Because it was only 3 marks

[violet dock]

Yeah ^^^

[frigid smelt]

As which year

[wintry meadow]

last

[wintry meadow]

what was answer

[signal acorn]

@wintry meadow

[wintry meadow]

ye

[signal acorn]

What was the 10 mark diff equation

[wintry meadow]

il try remember

[signal acorn]

My friends are saying two things

[wintry meadow]

i cant remember all

[signal acorn]

So idk which one is the right q

Was it

Y”+4y’-45=0

Forget the 0

[wintry meadow]

the solutions to the normal were 5 -9

[signal acorn]

Alright calm

[wintry meadow]

yh thats right then

[signal acorn]

And the function

Did it have

[wintry meadow]

the rhs had a e^5x

no constant

[signal acorn]

I was about to say 😭

[wintry meadow]

a x and x^2 term

[signal acorn]

People were saying e^2(x) was from the function I was so lost where they got the x from at the pi from lambda e^2x cuz the roots weren’t matching

But thanks for confirming

[signal acorn]

Was it -0.03?

[wintry meadow]

the 5 was defo in both

[signal acorn]

• 25 x^2

[wintry meadow]

that doesnt sound right

im not sure tho

i think it was 21e

actually i have no clue

[signal acorn]

Does anyone remember the function

[signal acorn]

There was a vector property question?

[wintry meadow]

yes

we were given axb and axc

and then we told find value of

i cant remmeber numbers but eg

(3a +5b+2c)(2a)

[signal acorn]

? Something similar to this?

You guys are lucky man

[wintry meadow]

no

[signal acorn]

Ohh

[wintry meadow]

it gave us values

for axb and axc

like a vector

[signal acorn]

Ohh

Fair enougg

[wintry meadow]

and all u had to do was notice the minus rule and like bxa = -axb etc

[signal acorn]

Yhh

[wintry meadow]

@signal acorn anoter q

using definition of maclaurin for sinx and binomial approximation give terms upto theta ^3

in

1/(1+sin(theta))^4

[signal acorn]

EASY

[violet dock]

I think it was 21 e^5x + 27x^2 -0.3x

[signal acorn]

Lhopitals rule? After

[violet dock]

Might have been some other negatives the other way on the last 2 tho

[wintry meadow]

no lol

[signal acorn]

Damn

[violet dock]

What did u get for this cos I messed up the algebra and realised with 30s left

I think

[signal acorn]

Ah u sure tho?

[wintry meadow]

not a clue

[violet dock]

Bc when I put it in my calc then it wasn’t close

[wintry meadow]

i dont remember 27 tbf

actually

[violet dock]

The numbers I’m pretty sure

[wintry meadow]

yes it is 27

[violet dock]

But idk about the +- order

[wintry meadow]

thats right

99% sure

[wintry meadow]

i can show what i did and try to refigure my answer

[violet dock]

Yeah I think so too

[violet dock]

Yeah cos I knew what to do I just messed it up I’ll redo it now

I am just so tired cos I couldn’t sleep last night

[violet dock]

I am now

[signal acorn]

Alr I’ll try the q now

[wintry meadow]

i dint write part of it on the last term

1 sec let me resend better

[violet dock]

Ohhhh I’m so stupid 😭😭😭

[wintry meadow]

wait no

im missing a partr

[violet dock]

Forgot the flipping x^3 term and said “didn’t need it” cos I read the expansion at first as to x^2

Then gave it to x^3

[wintry meadow]

its wrong anyway

[signal acorn]

Alr I got lambda as 3

[violet dock]

Ugh….

[wintry meadow]

in what

[signal acorn]

I got -3/5 x^2

[wintry meadow]

sounds right

[signal acorn]

For e

[violet dock]

That’s fine

[wintry meadow]

i think i put positive

[violet dock]

I think it should be 3/2

For e^5x

If I’m not mistaken

Then 1/10 and -8/225 or smth like that

Can’t remember exactly but

Yea

[signal acorn]

9/21 3/7

I got 3/7 for lambda mb

[wintry meadow]

i got 9/21 for something i think

[signal acorn]

Just divide divide properly

[signal acorn]

I got both to be negative

[wintry meadow]

then just simplify

[violet dock]

Likely

[signal acorn]

Nice easy 10 marks then

[frigid smelt]

Yes

[frigid smelt]

Someone did 1 / (and expanded ^4 )

That's 0 marks surely right?

[frigid smelt]

Yes

[wintry meadow]

probably 1 if they got sinx maclaurin series

[frigid smelt]

Think so

And a + - 0.6

Idk which one

[frigid smelt]

Possible

But was way easier than last year ngl

[wintry meadow]

not paper 2

[frigid smelt]

Paper 2 last year was much harder

Compared to ours

[wintry meadow]

eh i think this probably harder

esp cuz 20 questions

[modest bear]

guys

how was the pape

paper

[frigid smelt]

Was good

Better than paper 1 imo

[modest bear]

damn aqa was harder than edexcel

[frigid smelt]

Huh rlly

[modest bear]

i managed to predict 90% of the topics in edexcel

lmao

[frigid smelt]

Nice haha

Have they sat paper 2 ?

Or just p1

[modest bear]

i knew that there was gonna be volume of revolution parametric

[modest bear]

they did i t

[frigid smelt]

Further ?

[modest bear]

yh

[frigid smelt]

Oh I didn't even know

Grade boundries gonna be v high theb for edezcel it seems

Cuz apparently p1 was super ez too

[modest bear]

yh

[frigid smelt]

AQA too ngl

[modest bear]

we will see

[patent ledge]

what do you think grade boundaries for an A will be?

65 per paper?

[wintry meadow]

Probably same as 2023 I'd guess

it was similar difficulty overall

[patent ledge]

ye i fucking hope its not that much higher

[signal acorn]

Was paper 2 difficult @patent ledge

[frigid smelt]

Higher bro

Like 75 at least

[patent ledge]

for A not A*

[frigid smelt]

Oh

Ye

Something like that

[patent ledge]

ye a little bit but i just didnt do as well

[frigid smelt]

You'll defo get an A

Regardless

[signal acorn]

What topics came up

Did any matrices come up like inverses

[frigid smelt]

Ye

[signal acorn]

I would say it would’ve

[frigid smelt]

It did

[signal acorn]

In terms of k?

[frigid smelt]

Yes haha

[signal acorn]

They love using the letter k

🤣

[frigid smelt]

So u can't check ur answer

👺

[patent ledge]

ye im just sad i didnt get the reduction formula question

[frigid smelt]

It's all good bro

[patent ledge]

could of got an extra 9 marks

[signal acorn]

Yeah aqa always thinks of those silly ways to make people not being able to check

[patent ledge]

thats like a grade😂

[signal acorn]

IT DIDNT COME UP?

NO WAY

[frigid smelt]

Last q

9 marks

[signal acorn]

What was it?

[frigid smelt]

cos^nx

[signal acorn]

BRO SO FREE A😭

[patent ledge]

i literally did it for sin and tan this morning and couldnt replicate for cos

😂

i literally looked at the question in the textbook and thought

[signal acorn]

Split into cos^2 and cos^n-2

[frigid smelt]

No

Cos^n-1x

And cos^x

[patent ledge]

then what pigeon?

?

[frigid smelt]

Then by parts

[signal acorn]

Oh wait ur right

[frigid smelt]

With u = cos^n-1x

[patent ledge]

ye and what did you get

[frigid smelt]

And it comes out lovely

[signal acorn]

With tan u do n-2 mb

[frigid smelt]

Ye

[patent ledge]

can you do it

now

[frigid smelt]

Do you remember the q ?

The answer

[signal acorn]

Did u need to work out a definite integral?

[frigid smelt]

I can do it rough just so u can get an idea

One sex

[signal acorn]

Or was it just reduction formula

[frigid smelt]

Wag1 eith thjs keyboard

[frigid smelt]

There was

Limits

For the second part

You had to do

I6 I think

And the limits were

0 and pi/4

For the whole thing ye

[signal acorn]

That’s such a nice question

[frigid smelt]

Yeah it is

[signal acorn]

Was there more calculus

[frigid smelt]

Not that I remember

Lucky that eigen stuff didn't come up

[signal acorn]

Any vectors?

[frigid smelt]

In terms of geometrical representation

Cuz I ain't got a clue

[frigid smelt]

Nope

Apart from

[signal acorn]

Did u need to find the characteristic eq tho

[frigid smelt]

The a × b whatever u call it

Crossing the different stuff

[frigid smelt]

Nope

[signal acorn]

Ohh that fair enough

[patent ledge]

OMD

im so studpid

[frigid smelt]

Nothing of eigen or diaglsationatiom

You forgot sinx innot

I bet

[patent ledge]

i differentiated cos^n-1x wrong

forgot to bring sin

fuck sake

[frigid smelt]

I knew it

Catches every1 out

[signal acorn]

-(N-1)cos^(n-2)(x)sin(x)

[frigid smelt]

Yeah

[patent ledge]

yup

[frigid smelt]

Do you still want me to do it ?

[patent ledge]

nah its fine

[frigid smelt]

Or you shoukd be fine now?

Alright cool

[signal acorn]

My friend said he ain’t getting an A*

But he’s smart asf

so I don’t believe him

[frigid smelt]

I m3ssed up the inverse of the matrix I was so careful idk how

[patent ledge]

like i knew you had to bring an extra cos out but then i had n-3

[signal acorn]

U can always mess up on them

[patent ledge]

actually sucks

[signal acorn]

U can check tho

[frigid smelt]

I can't

No time

[signal acorn]

As long as u have a follow up q

[frigid smelt]

Ye we did

That's how I knew I got it wrong

I got 2/3 parts correct

And the other didn't work out

[signal acorn]

U can just sub k=1 and u can check if the simultaneous equations work

Ohh

[frigid smelt]

So I messed up somewhere

[signal acorn]

I wish I was born in 2006

[frigid smelt]

You'll see the paper tomorrow right ?

[signal acorn]

Yeah hopefully 🤞🏾

[frigid smelt]

How come

R u a teacher ?

[signal acorn]

Nah

[frigid smelt]

Bro has connections

[signal acorn]

my friend he’s got access to something 😭

[frigid smelt]

😭😭

[signal acorn]

So he can just send me stuff 💀

[frigid smelt]

I see 😭

I haven't done anything for maths tmr

[signal acorn]

Nah but for aqa

[frigid smelt]

But it shoukd b fine

[signal acorn]

It’s a bit unfair for aqa

[frigid smelt]

What is

[signal acorn]

The good materials for revision are on the teachers acces thingy

Like look

[frigid smelt]

I've got them 😎

I got connections too

N for edexcel

[frigid smelt]

And OCR n stuff

[signal acorn]

Nicee

[frigid smelt]

Oh these ones

Also exampro logins

[signal acorn]

Yeah you wouldn’t really find them elsewhere would you?

[frigid smelt]

You wouldn't

[signal acorn]

Yep

[frigid smelt]

I'm sure teachers give these out tho no?

[signal acorn]

Yh they do

[frigid smelt]

Not really sure why they don't give out exampro tho

A bit weird tbf

[signal acorn]

They gave us these for topic tests

For predicted grades

[frigid smelt]

Ohhh

Then it makes sense ig

[signal acorn]

Yh

[frigid smelt]

If the RHS of a second order was

25e^5x + ...x^2 + ..x

If you use

Axe^5x + Bx^2 + Cx

Is it fine

Without + d

[wintry meadow]

i think u need d

[signal acorn]

Nah u need that

[frigid smelt]

Oh do you

Ah ok

[signal acorn]

Ax^2+bx+c

[frigid smelt]

Thank you

[patent ledge]

Ye that’s what I did

[signal acorn]

Nice

[violet dock]

The paper wasn’t hard it was just a lot to do in 2h

[patent ledge]

Agreed

[modest bear]

gl tomorrow

[frigid smelt]

Wait

Why do you need a +d

How are you gonna compare a constant on the left side when there is no constants on the RHS

So d is 0 anyway surely.. ?

Oh wait nvm you get more constant terms on LHS too

[frigid smelt]

Thank you

Gl guys

[frigid smelt]

Easy 100%

[frigid smelt]

How did you guys find it ?

[wintry meadow]

edexcel?

[frigid smelt]

AQA

[tribal heart]

was good

[patent ledge]

When’s the fm aqa paper 2 coming

@signal acorn

[signal acorn]

Still don’t have the paper 😢

Fm is always the one they delay ffs

[wintry meadow]

U gonna do edexcel regular @signal acorn

[signal acorn]

Yeah as soon as I get the paper ofcourse

[patent ledge]

What are some formulas of volumes and areas of shapes we might need to remember for mech?

[wintry meadow]

none probably

ive never seen anything thats required me to memorise shapes

u need to know the CoM formulas tho

but ig if u forget u can derive it

[patent ledge]

ye

thye might ask like a question that requires you to know volumes of a cone or circle

for some reason i always forget volume of circle and cone

😭

anyway they probably wont

i hope i scrapped an A in paper 2

because im not feeling confident about mechanics

[wintry meadow]

u said u got like 90% in paper 1

i thought

[patent ledge]

ye

i did really well paper 1

[wintry meadow]

so ur fine then

[patent ledge]

but i was so slow paper 2

like ik i lost 18 marks from question i ddint do

[wintry meadow]

if i didnt make any mistakes i think i could get like 90 - 95 but i wouldve so made like 80s for me hopefully

[wintry meadow]

last q?

[patent ledge]

ye i didnt do reduction formula

and

argan one

6 marker

[wintry meadow]

i doubt many people got that

[patent ledge]

and there was a 3 marker eailer

[wintry meadow]

do u do edexcel regualr or aqa

[patent ledge]

aqa

[wintry meadow]

nvm then

[patent ledge]

surly an A wont be about 65 this year

it was 57 last year

[wintry meadow]

u defo get an A

just aim for a*

i got no time to revise mech or stats

only night of physics which i cant do anything

gonna have to do some in morning

[patent ledge]

ye my stats is good however its so easy to lose marks

[wintry meadow]

yh

stats is easy

[patent ledge]

what is a conical shell

is it a cone

thats hollow

[patent ledge]

Have they ever asked us to derive the formula for integrating com

[modest bear]

@patent ledge u=2x+1

?

U^2=2x+1

Nvm is u=2x+1

[frigid smelt]

Yeah

[frigid smelt]

Never seen it

[modest bear]

@frigid smelt i got k=12

[patent ledge]

is this paper 1?

so long ago i dont remember

[modest bear]

yh

[patent ledge]

fm?

[modest bear]

normal

[modest bear]

@violet dock

[frigid smelt]

That's correct

[modest bear]

bro the equation was hard, i had to put it into my calculator

[frigid smelt]

Did you get simultaneous equations ?

[modest bear]

yes

[frigid smelt]

Oh haha

[modest bear]

i found y first

which was 2

than sub it to the other equation

to get 12

[frigid smelt]

Yeah ik what you done

[modest bear]

look at this nasty

[frigid smelt]

Woah

[modest bear]

had to put it into the calculator

[frigid smelt]

Yh idk what you done

[modest bear]

i made k the subject