โณ๏ธ๐ชกYou can call me Shedim or Indefinite! :]
๐ฆUA/ENG โข xe/xem/xyr
๐ฆ18 years old | April 1st
๐ฆOne of them Albert James Moriarty's fans :p
๐ฆMy social battery is too low for my own good, so please excuse me if I'm taking a while to reply! I still love to interact with y'all
๐ฆAlso feel free to DM me or send me asks!
๐ฆMy main goal in life is to win a tea drinking contest against an average British person. Also to get as many people as possible to name their child Albert
๐ฆArt account: @paracetamoth
๐ฆMy musings are tagged with #รฆ and my reblogs are tagged as #rb
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...have you seen the online response to the maths paper 1?
I've seen the petition, honestly idk if it's going to do anything and idk if this happens every year tbh๐ atm I'm just trying to focus on paper 2s, cuz now I just KNOW that I probably did the usual mistakes in basic algebra so I'm no longer confident in my responses lmao
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Honestly, I thought that it was a really nice paper, but I keep seeing people call it abysmal so idk if I just went wrong somewhere๐ I ran out of time and missed around 30 marks (ยฑsince I started some of these questions, that includes Q15 and I hope to get like two marks from it since I didn't finish it)
I forgot what Q7 was but if it's that trig proof then dw I barely did anything there๐ I'm actually decent at working with CAST diagrams but it was locked behind part a and I'm so mad about that๐ญ
I am also hoping for a B at least, my firm wants an A but screw that atp๐ญ
7 was the semi circle where you had to find p and q
With like 2 minutes left I realised how to do it, did it really fast then went to part b, but part b wasn't working so either I made a right mess of part a or my brain shut off at part b ๐
Feel very sad there was not first principles
Though I must say the integration was nice, nothing too hard
I spent the morning truing to remember the proofs we need to know only for that abomination of a question to pop up
Oh we do NOT talk about the semi circle. All of my radians revision for nothing๐ They just gave us a bunch of information and then randomly go "show that theta satisfies this equation" WHERE did they pull that equation from
I did try to work with areas and I was getting something interesting, but couldn't finish it
Again, WHY would they lock a mark-heavy part b behind the answer to part a. They should've at least given us an alternative equation or whatever๐ my teacher specified that people often disregard Newton-Rhapson and that we should revise it a little, I did, I was so confident on getting that but noooo๐ if they wanted me to show that I can do NR then they should've given me something to work with๐ญ๐ญ
Honestly, I thought that it was a really nice paper, but I keep seeing people call it abysmal so idk if I just went wrong somewhere๐ I ran out of time and missed around 30 marks (ยฑsince I started some of these questions, that includes Q15 and I hope to get like two marks from it since I didn't finish it)
I forgot what Q7 was but if it's that trig proof then dw I barely did anything there๐ I'm actually decent at working with CAST diagrams but it was locked behind part a and I'm so mad about that๐ญ
I am also hoping for a B at least, my firm wants an A but screw that atp๐ญ
Anya is live and ready to show you everything. Watch her strip, dance, and perform exclusive shows just for you. Interact in real-time and make your fantasies come true.
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Your friendly reminder to rest, eat well, not do too much revision or stress too much before your exams from a fellow A level student!
You are so kind thank you sm<33 Good luck with tomorrowโs exam! Weโve got this
(well, todayโs exam cuz Iโm definitely terrible at actually resting before the exam, which is why your reminder hits even harder rn Iโll go to bed soon I promise)
But also, fucking whiplash. Made it through the chapter, looked into the news...
Wow. Fucking. Lukyanivka, KSE, Zavertaylo and the Chornobyl Museum in one night. And that's just the places I have personal links to in my home city.
For fuck's sake.
This was the Chornobyl Museum, btw.
UPD: Okay, wow. Hinaus, Zhitniy market, the Shevchenko Literature Institute, the National Art Museum, the Kyiv Small Opera too, holy hell. I suppose our enemies think all of our thinking and military planning is done in cultural institutions. Motherfuckers.
(Also hm, I can see the tower at the museum's still standing, so this is an interesting angle for a shot, I think? Or I am shit at recognizing my own city from above; that's also an option.)
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Yooo smart mathematician, iiiiiiiffff you were to be bored, like theoretically, would you fancy some talk about exponentials and logarithms :> I feel like I struggle with the topic, all ik is how to manipulate log laws and differentiating e and that natural ln and regular log/log10 exist ig but other than that I barely understand them and how to use them in modelling and stuff๐ only if you would want to tho, feel free to ignore this cuz ik people have lives :>
oh no i got plenty of time
do you need something specific or should i just yap
Thank you kind mathematician๐๐ You can just yap, I feel like going off spec might actually help me understand the concept itself and why it works rather than just memorizing methods :D
alright this is gonna be probably very disorganized but fuck it we ball
logarithms are the inverse functions of exponentials, so all the inverse function rules apply (graphs mirrored over y=x, they negate each other, all that. worth noting that for them to negate each other, the bases do have to be the same (so ln(5^x) can't really be simplified the way ln(e^x) can)).
logarithms in general are a bit of an expedited way of simplifying exponentials. their definition, though not at all formal, is if log(b)a = u, then b^u = a. they were originally introduced by some guy in the 1600s to make large, high-accuaracy computations more easily and then euler found their connection to exponentials.
there are a few identities that are fun to mess around with, kinda in the same way trignometric identities are. they're mostly used to expand/simplify logarithms in the context of something else. here's the wikipedia list cause i didn't feel like typing out all that (formulas are a pain on tumblr)
deriving and integrating logs are. so fun. like so fun i love it so much. probably because it's painfully fucking simple lmao- anyways! the reason e and ln are so common is because their derivatives and integrals are so simple, the derivative and integral of e^x is e^x + c, and the derivative of ln(x) is 1/x. more generally, though, the derivative of a^x is (a^x)ln(a), and the integral of a^x is (a^x)/ln(a). and the derivative of log(a)x is 1/xln(a) and the integral is xlog(a)x - x/ln(a) + c.
and uhhhh i think that's all i have! maybe! not sure if i covered everything you needed
Yoo we never really the root formula, that's so cool c: tysm for the explanation, knew you were the right person, tysm for taking your time to explain it๐๐๐ if you don't mind, do you think you can explain logarithmic graphs? I understand the y=e^x one fairly well and the basic y=logx one, but the moment they use logs on actual contextual formulas (something like V=1500+13000e^(-0.098t) where V is like price and t is time in years, I just made up the numbers) and they either log the whole thing or just one side (somehow?) and that's where I'm completely useless๐
oh damn i dunno if i remember that myself ๐i'm ass when it comes to graphing shit lmao
i know they all pass through x = 1 (assuming you haven't added a constant) and the lower the base you have, the more stretched out it will be.
adding a positive constant will shift the entire graph upwards and a negative one will shift it downwards. to shift left and right, you add the constant directly to x (positive for a left shift and negative for a right shift). and multiplying the entire function by a constant will also stretch or contract the function
i think that applies to both? i'm really not sure, like i said graphs are not my strong suit
That's fair, exponents&log modelling with graphs is genuinely my least favourite topic out of the whole course, atp just give me all the calculus man๐๐ thank you sm for taking your time for me, I appreciate it sm๐ฅน๐ฅนโค๏ธโ๐ฉน
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