#Sequences and series

137 messages · Page 1 of 1 (latest)

misty plaza
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Can someone please help me with part a of this question? I really Don know how to go about it

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small bronzeBOT
misty plaza
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brisk kraken
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,rotate

clever ospreyBOT
brisk kraken
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This is a geometric series. What do you know about geometric series?

bronze cape
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aahl??

misty plaza
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Thing is the formula it's self is a sum to infinity no?

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So then what values to give a finite sum

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Im confused

misty plaza
bronze cape
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cool im an alumni

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anyways

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if x = 1, how would you evaluate the sum?

misty plaza
bronze cape
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is uwc a school

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i did do ib though

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hls were chem, aa, and eng lit a

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sls were econ, japanese b, and spanish b

misty plaza
bronze cape
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oops

misty plaza
misty plaza
bronze cape
bronze cape
misty plaza
misty plaza
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U japanese?

bronze cape
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no im chinese

bronze cape
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assuming it converges

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ie, when would an infinite geometric series converge?

misty plaza
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ohhhhhhhh

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when r is less than 1

misty plaza
bronze cape
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but i had been learning japanese for 2 years at that point and i was almost done so i was like why not

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  • it wasnt too difficult either
bronze cape
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so using that information can you figure out part a?

misty plaza
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i see so when it converges thats when a sum to infinity gives a finite sum apply the modulus r is less than 1

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right?

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i really did not know this , like i would just apply the formula without understanding😭

bronze cape
misty plaza
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idk why i took it

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how do i become good in japanese😭

bronze cape
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i think its the most difficult language for native english speakers to learn personally

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i know chinese so that helps with the kanji portion a lot

bronze cape
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that's what i did

misty plaza
bronze cape
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practice as in interacting with native speakers if you can

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but make sure to take in all forms of japanese media--whether that be music, shows, podcasts, etc

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also try to think in japanese if possible, that's what i personally feel is the best way to get fluent in a language

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if you can think in the language (especially while you do certain tasks) then your fluency will naturally become better

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this is for listening/speaking

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as for reading/writing it's still practice

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i would mainly say focus on reading japanese media such as newspapers, articles, diary entries, etc.

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while short stories and books are also good i would advise against that early on

misty plaza
bronze cape
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mainly because they take time to understand and can be difficult

misty plaza
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what can i read with little kanji knowledge

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i only know hiragana n katakana

bronze cape
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i would say learn some more kanji then is my advice

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i assume you are doing ib at a school right (stupid question but)

misty plaza
bronze cape
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also be patient in the process of learning japanese--its not something that comes quickly (this applies to all languages)

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there's a lot of kanji and grammar that needs to be learned just to understand some simple things

misty plaza
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btw what were your ib subjects

bronze cape
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hls were chem, aa, and eng lit a
sls were econ, japanese b, and spanish b

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aa math oops if that wasn't obvious

misty plaza
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what did u do your ee on

bronze cape
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linguistics

misty plaza
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whats that

bronze cape
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the study of language

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i was gonna do a math one but i realized i wanted to do linguistics more

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im talking about the ee subject btw

misty plaza
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😭

bronze cape
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i had a lot of possible ideas

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im majoring in math though lol that's why i held off on it

misty plaza
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i wanna do a chem ee

bronze cape
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ooh

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make sure you set enough time for yourself

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because you'll have to spend a lot of time in the lab for that

misty plaza
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but apparently its impossible to get an A

bronze cape
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for a chem ee? i think it's possible

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can't really speak much on it though since i don't know anyone who did a chem ee

misty plaza
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plus im not the smartest in chemistry

bronze cape
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mainly because we have to write our ee's over the summer so the lab is not normally open during the summer, you'd have to do everything at home

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chem is a lot of practice

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luckily it got easier i believe though right?

misty plaza
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i just extremely love it

bronze cape
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yeah chem is really fun

bronze cape
misty plaza
bronze cape
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so afaik if you do a chem ee you have to conduct an experiment

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essentially think of it as your chem ia but on a much bigger scale

misty plaza
bronze cape
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you?

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i think they removed the options last year

misty plaza
bronze cape
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may 24

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so now ur only tested on core

misty plaza
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but passion wont always lead to good grades

bronze cape
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yeah i agree

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its passion + hard work

misty plaza
bronze cape
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yeah so you guys dont have the options anymore

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you only have a paper 1 and 2 now i think

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for my year we had papers 1 2 and 3

misty plaza
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theres kids in my class who already know the chemistry stuff we are learning😭

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theyd do better in the ees

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as for me struggling🧍‍♀️

bronze cape
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is this your first year

misty plaza
bronze cape
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a lot of the stuff at the beginning of year 1 may have been covered elsewhere

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in prior grades

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or maybe they're just studying

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a lot

misty plaza
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why do the make the ees in the last year😭

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i mean in takes a lot of time n effort

bronze cape
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well i assume that's how most schools do it

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if you want to get a jumpstart on your ee i would say brainstorm research questions

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a good research question can go a long way--iirc you are also graded on the scope of your ee question so

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ok i have to head out now but best of luck with your studying!

dapper dome
# clever osprey

To have a finite sum, the term must be smaller than 1 now just find the values for which
2x/x+1 < 1

dapper dome
misty plaza