I haven’t slept for like 3 days so I can’t remember any equations
#can anyone help me do this simple differtiation
compact laurel
hearty boneBOT
compact laurel
Use the chain rule. If you have any questions, feel free to ask
thanks appreciate the help 👍🏻
storm zodiac
Np bro
storm zodiac
Yeah, I'm in my 3rd year
compact laurel
that makes sense
i didn't think you'd have the time to help people doing a level maths if you're in uni
storm zodiac
I'm on my winter break rn so I've got time haha
compact laurel
i thought you would be starting back tomorrow
compact laurel
im from wales
storm zodiac
cool
compact laurel
im guessing you assumed that cause my pfp
storm zodiac
I assumed that from u saying that school starts on the 8th
storm zodiac
Canada
compact laurel
ah right
im planning on going to uni to do maths in uni in september do you think there is a big difference between uni and highschool
storm zodiac
I think there's a pretty big difference for sure
In uni you'll be taking a lot of proof-based math classes, and the kind of thinking that is required to write proofs is quite different from the logic needed to computational maths
A lot of people find the transition from numerical math classes like algebra and calc to more conceptual ones to be jarring, but if you thoroughly understand the material from hs you'll be good
compact laurel
alright thats good to know
do you spend most of your time only focusing on maths or do you get a lot of time to do stuff outside of education
storm zodiac
I try to maintain a balance
throughout the majority of the academic year i'll spend maybe 2hrs outside of class reading and doing homework
which gives me a lot of time to dedicate to other stuff
compact laurel
that sounds pretty chill i just need to start focusing more cause since covid i havent really been paying attention and attending all of my classes even though when im in class i tend to be one of the ones doing best outside of class and during tests i've been struggling a lot and recieved a low grade last year due to that
storm zodiac
The same thing happened to me during my final year of hs. All of my classes were online so I found it difficult to muster the motivation necessary to attend every single one and pay attention. I mostly slept through them haha
I think that if you brush up on your understanding before ur first uni class you'll be set
compact laurel
The same thing happened to me during my final year of hs. All of my classes were...
thats literally what i did i think the work i did in that time was so easy now and i did good in all of that and this year i look back at last year and all the work seems so easy but then when i do it just doesnt add up
compact laurel
before covid i would be getting a 100% almost everytime then i just did nothing in covid and my teachers were all sending letters and shit cause before that i wouldnt even try that hard but i would be putting a bit above the bare minimum and i would have no trouble at all
storm zodiac
Happens to the best of us. During my first year of uni I had to drop several courses due to literally not doing anything
compact laurel
in canada do you do multiple subjects at once?
storm zodiac
strange things happen to your psychological state and academic motivation when you're forced to stay indoors all day
yeah
I'm taking 4 courses rn
compact laurel
i would much rather that cause then i would be less likely to get drained/bored but for uni i have to do a single subject
im hoping it wont be too difficult learning in english instead of welsh
its good that its mostly numbers but it can be hard to find how to do certain questions
storm zodiac
For some of the more advanced concepts you'll study at uni, the textbooks contain very few numbers. Mostly paragraphs upon paragraphs with symbology sprinkled in between. I think you'll do fine though bc you seem fluent
compact laurel
yeah i basically use english all the time its just in school
i think ill be fine its just some mathematical terms i have to google translate
compact laurel
im doing maths and phyics in hs ill be finishing in like june ill be 18 so i dont know if youd still be at college at that age?
storm zodiac
Yeah, I'll be in college until April of 2026. I need to take an additional year since I spent my first year studying medicine/biochem instead of math
compact laurel
thats fair enough do you have any ideas of what you'd like to do after college?
storm zodiac
I'll probably apply to graduate school. Idk if i'd like to continue studying math, but I'll probably end up in a quantitative field for sure. Maybe physics or computer science
What about you?
compact laurel
ive been thinking about what i want to do after high school for the past like 2 years and havent been able to decide so i thought id just carrying on persuing what i've always been best at which is maths, and hopefully when i attend university i'll be able to play basketball more and improve. As of now i have no idea what ill do after university( if i get in to one) or what ill do instead of university. I use to just want to do whatever paid me the most money now im leaning more towards just playing basketball as much as i can
storm zodiac
Cool. Figuring things out as you go is a good idea
compact laurel
i dont want to just sit around ive done to much of that since getting halo 4 in like 2014 at like 7 most my life has been sitting down
storm zodiac
Fair enough
storm zodiac
Hanging out with friends, occasionally going back home to see family, the usual
compact laurel
do you live far away from your family then?
storm zodiac
Yeah, about 200km
compact laurel
yeah if i go to uni in of the top 2 places i want t go ill be a pretty similar distance
whats the drinking age in canade 18,19?
storm zodiac
19
compact laurel
how old are you now 21?
storm zodiac
20
compact laurel
whats the driving age like 16?
storm zodiac
yeah, as soon as you turn 16 you can take a driving test called the G1
It's a written, multiple choice test that covers road signs and driving rules
after you take it you can drive under the supervision of someone who has their full license
if you want to drive by urself u have to take a test called the G2 which is a practical test
compact laurel
so if you get your driving license your friend who coudlve passed like a week ago can be in the car and you can just drive like that?
fiery maple
after you take it you can drive under the supervision of someone who has their f...
if someone doesnt know how to process the clutch and everything then how can he/she even drive in supervision of anybody
storm zodiac
Legally you're allowed to drive, but i agree that the law's kinda stupid
compact laurel
whats like car insurance prices over there like?
compact laurel
u need to be 17+ to drive here
same in uk
storm zodiac
Most people with their G1 license practice in empty parking lots for a bit before actually driving on roads
storm zodiac
whats like car insurance prices over there like?
No idea as I don't have a car lol
fiery maple
yo is @storm zodiac ur canadian tour guide or smth like what are u even asking lol
compact laurel
i had a maths question then just talking about uni and stuff
compact laurel
i got another maths questions dont worry
compact laurel
but like asking bout what are the insurance prices
idk tbh
fiery maple
nah u can ask him questions but its so off topic lmao
anyways roads and traffic is a mess in my country
storm zodiac
Where are u from mummychor
compact laurel
I need to expand this in ascending powers of x up to x^3 I remember this being pretty easy at the time but my mind is blank now
fiery maple
I've heard that public transportation is pretty difficult to navigate there
everything is difficult bro there are like 1.5 billion people here
compact laurel
China?
fiery maple
india
fiery maple
yeah
fiery maple
I need to expand this in ascending powers of x up to x^3 I remember this being p...
wdym
what do i do with that expression?
storm zodiac
yeah same i'm confused lol
compact laurel
Like I need to expand it i think
fiery maple
I've heard that public transportation is pretty difficult to navigate there
but i live in mumbai so its alright here
compact laurel
It’s in welsh
fiery maple
bruv
compact laurel
fiery maple
welsh is a language?
compact laurel
This is why learning in welsh is bad
compact laurel
Not a very spoken one
fiery maple
that shit looks worse than german to me
fiery maple
shit boutta be extinct
compact laurel
So if or when I move out of wales I just know a useless language
compact laurel
its says up to and includes x^3
fiery maple
just cube it
compact laurel
Expand 1+2x in ascending powers of x up to and including the term in x' State for which range of values the expansion is valid.
This is it translated
compact laurel
just cube it
Surely can’t be that ways
Easy
The equation is wrong in the translation
fiery maple
its 4-x/sqrt(1-2x) ?
fiery maple
oh ok
the question is a bit wrong here
it should be for which values of real numbers in the domain is a subset of
compact laurel
maybe i translated it wrong? i remember doing a question that sounded similar a few months ago just cant really remember what do now
storm zodiac
Same bro, idk what the question's asking for when it tells you to "expand" the expression
compact laurel
nah its not that lmao
fiery maple
send us anothe question
compact laurel
its like the only question i got left except for 1 or 2 "geometry sequence" ones
fiery maple
send it
compact laurel
may or not be in welsh
fiery maple
just translate it for us
compact laurel
i can try
compact laurel
The pth term of a geometric series is equal to 16. The (p + I)th term of this gyre is equal to 24. Find the (p + 4)th term of the series. [3] (b) The sum of the first three terms of another geometric series is 22.8. The sum to infinity of the series is 18.75. Find the common ratio and the first term of this geometric series. [6]
Might not be perfect
fiery maple
what does gyre mean
fiery maple
okay
compact laurel
think i got part a right
storm zodiac
ratio is 1.5 so p+2nd term will be 24(1.5), p+3rd term will be 24(1.5)^2, p+4th term will be 24(1.5)^3 so 81
yeah
compact laurel
just unsure about part b
fiery maple
its 81
compact laurel
how did you determine that?
fiery maple
im talking about the first part
fiery maple
oh
compact laurel
mb
storm zodiac
The sum of the first three terms can be represented by the eq a + ar + ar^2 = 22.8
and the sum to inifinity can be represented by a/1-r
fiery maple
i got two equations a(1+r+r^2) = 22.8 and a/(1-r) = 18,75
storm zodiac
= 18.75 right?
compact laurel
The sum of the first three terms can be represented by the eq a + ar + ar^2 = 22...
that makes sense for some reason i was only thinking ar^2 not a + ar + ar^2
then do i swap a in to the equation?
or am i wrong
fiery maple
divide them u get a quadratic in r
solve it and u get 2 roots of the quadratic
choose the r with r<1 as it is an infinite series
is it ok? @compact laurel
compact laurel
all most caught up give me a second
fiery maple
kk
fiery maple
reject the first one
compact laurel
yeah
fiery maple
as negative r cannot provide a positive sum
compact laurel
yeah
fiery maple
cuz the negative sign can change every alternate term right
so it can add up i think?
idk
probably no
but why do they give u so terrible numbers?
compact laurel
just mean like that
compact laurel
Find the sum of eighteen (eighteen) the first term of the geometric series 100 + 80 + 64 + … Give your answer correct to the nearest whole number. ) The second term of a geometric series is - 20. The sum to infinity of the series is 64. (i) Show that r, the common ratio of the series, satisfies the equation 16r^2 - 16г-5 = 0. (in) Find the value of r, giving a reason for your answer.
Done most of this
Has to be right I think cause I proved it
it cant just be as easy as 5/4 or -1/4
compact laurel
how did you get that
compact laurel
where did 4/5 and 1/5 come from
fiery maple
sum = a(1-r^n)/1-r
compact laurel
somehow im still unsure
compact laurel
yeah i get taht
fiery maple
u have to know it to solve the question
compact laurel
but still dont know where you got 4/5 and 1/5
fiery maple
you find the common ratio in a geometric series by dividing any two consecutive terms
like here i divided the second term by first term
compact laurel
so 80/100 and like 64/80
compact laurel
so did you just do 1- 4/5 to get 1/5
fiery maple
yes
compact laurel
okay
i think im good now
i dont kow how i didnt see that
i got one last question if you're able to help
fiery maple
no worries
compact laurel
its pretty similar
fiery maple
sure
compact laurel
The eighth and ninth terms of a geometric series are 576 and 2304, respectively. Find the fifth term of the geometric series. (b) The first term of another geometric series is a and a common ratio is r. The third term of this geometric series is 24. The sum of the second, third and fourth terms of the gyres is - 56. Show that r satisfies your equation 3r^2 + 10r + 3 = 0. Knowing that |r|<1, find the value of r and sum to infinity of the series.
compact laurel
maybe 576/2304 and 1-576/2304?
so like s= (576(1- (576/2304)^24/1728/2304
r= 576/2304
?
1/4
if so what would be the point in it giving me 3r^2 + 10r +3 =0
nevermind
thats a different part lol
fiery maple
just get the two equations according to the questions
on solving them u will get a quadratic
which will be the quadratic given in the question
then just find its roots given that |r| < 1
then find the sum of infinite terms with the formula which i told u earlier
fiery maple
u get ar + ar^2 + ar^3 = -56 and ar^2 = 24
compact laurel
yeah i got that
fiery maple
put the value of ar^2 in the first one
compact laurel
ar + ar^3 = -80?
fiery maple
(ar + ar^3)/ar^2 = -80/24
compact laurel
ar + ar^2 +ar^3 = -56 / ar + ar^3 = -80
compact laurel
so like s= (576(1- (576/2304)^24/1728/2304
does this seem right to you for the last part?
fiery maple
does this seem right to you for the last part?
noo its totally wrong
compact laurel
how
compact laurel
oh
yeah
what do you think the best way to get a is then
like 576 share with 4
like 8 times?
fiery maple
from there you can get a as well
compact laurel
okay
fiery maple
like the conic sections?
.
compact laurel
i got 44
fiery maple
conic sections
compact laurel
i translated it and still didnt recognise it
compact laurel
i dont noramlly remember the names of anything im doing
fiery maple
did u learn it
compact laurel
to be honest them words dont really mean anything to me
nothing comes to mind at all
i mightve done it
fiery maple
i translated it and still didnt recognise it
bro its english 
compact laurel
i learn in welsh
compact laurel
idk tbh
fiery maple
how old r u
compact laurel
17
fiery maple
lol same
compact laurel
damn
fiery maple
damn bruh
compact laurel
lol
compact laurel
i thik i done it wrong
fiery maple
what
compact laurel
i used r=4 when in the end im meant to be getting r<1
fiery maple
isnt that for a different question?
compact laurel
maybe
fiery maple
get some sleep
compact laurel
well
fiery maple
its like 5am there
compact laurel
how many subjects did you do at 15
fiery maple
i was in 10th grade when i was 15
compact laurel
so how many subjects was you studying then
fiery maple
10
fiery maple
thats why we are asians
compact laurel
thats why we are asians
i shouldve been born there
fiery maple
believe me u guys have more perks there
compact laurel
you think?
compact laurel
well anyways anychance you can help me get a and r in the last question i need to do back up the chat
fiery maple
lol
fiery maple
yes
fiery maple
get some sleep then
compact laurel
thanks for all the help man i really appreciate it
fiery maple
no worries
hearty boneBOT
Solved
fiery maple
happy schooling ig idk