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MATH GODS COME
Jamppi | 
Finland Jomppeboi 
2020-09-22 18:17
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syntax error lol
2020-09-22 18:19
So it's not even possible?
2020-09-22 18:19
i dont know i just said that because that shit is hard af
2020-09-22 18:20
ikr mens((
2020-09-22 18:20
shit like that got me like 2/20 on math xd
2020-09-22 18:21
Would be fun if he gonna to school and will say "here is syntax error lol" xDDD
2020-09-22 18:25
xD
2020-09-22 18:27
CHINESE PPL COME You should type it like this man.
2020-09-22 18:20
Indians > Chinese when it comes to math
2020-09-22 19:01
Indian ppl at youtube is something above tierGOD
2020-09-22 19:05
A year ago I would've been able to do that Now I've forgotten Depressing.
2020-09-22 18:20
Thats what school is all about to learn and forget
2020-09-22 18:43
yes
2020-09-22 18:57
#48
OK | 
Peru airbIade
same
2020-09-22 18:43
#53
 | 
Brazil JMB_17
same lmao
2020-09-22 18:45
#7
God | 
Poland henlo
just use calculator men wtf
2020-09-22 18:20
#9
 | 
Ukraine Dert38
sperm broke my memory at this time in uni...
2020-09-22 18:21
wtf bro...
2020-09-22 18:22
#12
OK | 
Peru TheJuan
thats an anti derivative so just do the opposite of differentiation
2020-09-22 18:24
Got this on the calculator: gyazo.com/52553afc7337a3b17e833788424355.. So I guess I have to open the brackets then just integrate all the terms...
2020-09-22 18:26
#29
OK | 
Peru TheJuan
you could solve the binomial first and then integrate, but I think it would lead to something like the thing you got from the calc
2020-09-22 18:29
Yea that's what I meant. First I thought I could just this to solve it: gyazo.com/f17a1e910f73d56c5cd0301ee513e3.. But it's missing an x outside the brackets.
2020-09-22 18:30
#44
OK | 
Peru TheJuan
I think what you got from the calc is right tho its just missing the +c at the end
2020-09-22 18:41
Yea the calc doesnt give the + C part
2020-09-22 18:42
Math God lol, and then its an equation for some random high school junior lmao
2020-09-22 18:24
#14
 | 
Turkey DodoMan47
Bro how old are you? I think i am so young to know that but i want to know when i will learn that.
2020-09-22 18:24
18. We learn it in 2nd/3rd year of high school in Finland.
2020-09-22 18:25
#30
 | 
Turkey DodoMan47
Finland education system and Turkish education system have a very huge difference but thanks bro.Maybe i can learn this year.Very early to say something now.
2020-09-22 18:30
we learnt it in 12th grade so 17-18 years old, I think its a norm for most countries.
2020-09-22 19:02
not that hard man, why are you on hltv just look at your math book xaxaxaa
2020-09-22 18:25
#18
DEVIL | 
France Efon
I think it's ((4x²-3)^8)/(8x*8)
2020-09-22 18:25
2020-09-22 18:26
#23
DEVIL | 
France Efon
it's a primitive ?
2020-09-22 18:27
#28
DEVIL | 
France Efon
bc when I make the derivative of what I found, I am going back to your equation
2020-09-22 18:29
#33
DEVIL | 
France Efon
no nvm I suck
2020-09-22 18:30
XD
2020-09-22 18:36
#21
 | 
Denmark Jonasnhj
I can solve it. but the dx at the end makes no sense
2020-09-22 18:26
What? If you know how to solve it you know what the dx means xd
2020-09-22 18:29
#36
 | 
Denmark Jonasnhj
Let me say it in another way, I know how to do it all exept the dx part.
2020-09-22 18:32
dx means integrating the x lol. If you don't know what that means then you shouldn't be able to integrate
2020-09-22 18:36
integrate with respect to x lol i dont think you understand
2020-09-22 18:32
wtf even is that
2020-09-22 18:28
idk bro some letters and numbers in brackets wtf is this shit.... So lame. Wanna hang out at restaurant?
2020-09-22 18:30
2020-09-22 18:29
not exactly, but you'll need to use some weird substitution rules
2020-09-22 18:33
Nope you can't use it here because it's missing an x outside the brackets. The way you solve it is first doing this: gyazo.com/341d0488b0caf76bae07582e4e44d1.. Then just integrating the terms 1 by 1... If it was like this: gyazo.com/d5f9d0635ece73162c7c9cd3c2665a.. (extra x) you could use that, but since there is no x you can not use that.
2020-09-22 18:35
Oh i forgot differentials sorry
2020-09-22 18:37
i got it now dont worry men))
2020-09-22 18:37
Expand, integrate, reduce. The expand is probably the worst part.
2020-09-22 18:40
Yeah I got it now. I don't have to do it luckily, just had to know how it COULD be done. Thx anyways
2020-09-22 18:42
No problem. Please embrace whatever course you are taking. Whenever you finish school you will cry to do more math. At least if you are like me, school was so much better than working!
2020-09-22 18:45
Trying to get into med school after high school and that's another 5-10 years of studying. I think I'll happily join the worklife after that!
2020-09-22 19:22
I went to major in econ, its a year since i finished it. I cannot tell how much more fund it was to be in school. The subject were more interesting, the social life was incredible. Also as a guy who loves math, I really miss doing it for "a living".
2020-09-22 19:51
what sadist is making you do this if you have to solve it by hand, it would be easiest to turn (4x^2 -3)^7 into (4x^2-3)(4x^2-3)(4x^2-3)(4x^2-3)(4x^2-3)(4x^2-3)(4x^2-3) and then multiply them all together, one at a time (very tedious) then you will have a bunch of terms with + and - between them, which is easy to integrate and I shouldn't have to explain to you how to do that unless there is some shortcut I forgot
2020-09-22 18:44
agree, it will be too long to find 7th degree of the expression )
2020-09-22 19:08
Ye I don't have to do it xd. The question was "How COULD it be done? You don't need to actually solve it." And no there is no shortcuts that is the only way it can be done.
2020-09-22 19:10
#50
 | 
Sweden Kasidro
use the chain rule and substitute u = 4x^2-3 en.wikipedia.org/wiki/Chain_rule if you don't know how to use it. it is a very simple derivative. nvm it is an integral, can still be solved by substitution however.
2020-09-22 18:47
yeah that sounds better than what I wrote lol, forgot about substitution although you meant this en.wikipedia.org/wiki/Integration_by_sub..
2020-09-22 18:47
#55
 | 
Sweden Kasidro
too be fair i haven't really done math in like 7 years so most of it is gone since my uni days lol
2020-09-22 18:47
#56
 | 
Sweden Kasidro
yeah spotted a bit too late that it was an integral :)
2020-09-22 18:48
Only way to solve that is by first doing this: gyazo.com/341d0488b0caf76bae07582e4e44d1.. Then just integrating the terms 1 by 1. If it was like this (extra x): gyazo.com/d5f9d0635ece73162c7c9cd3c2665a.. You could use this to solve it: gyazo.com/8bfeb4038e647e28f75fd1c1b4d2ad..
2020-09-22 18:55
#64
 | 
Sweden Kasidro
yeah your right
2020-09-22 18:56
#51
 | 
Austria mo_bamba
men use symbolab it simple derivative anyway
2020-09-22 18:45
#57
 | 
United Kingdom rationale
The answer is: integral(4 x^2 - 3)^7 dx = (16384 x^15)/15 - (86016 x^13)/13 + (193536 x^11)/11 - 26880 x^9 + 25920 x^7 - (81648 x^5)/5 + 6804 x^3 - 2187 x + constant
2020-09-22 18:49
#58
 | 
China SwooksarV2
This brings back memories. HL math days in highschool.
2020-09-22 18:54
Like this, maybe? Not guaranteed to be correct imgur.com/a/2gnh56I
2020-09-22 18:54
Check #60 You would be correct if it was like this: gyazo.com/d5f9d0635ece73162c7c9cd3c2665a.. Since you need the extra x outside the brackets 8)
2020-09-22 18:56
Oh yeah, my bad. Of course the x in the correcting term must be inside the integration. Well, at least I passed the courses lol
2020-09-22 18:57
Hehe all good
2020-09-22 18:58
#62
 | 
Sweden botl0f
more like 8th graders come.
2020-09-22 18:56
Swedish education insane or what?
2020-09-22 18:59
#70
 | 
Sweden botl0f
nah finnish just trash
2020-09-22 18:59
okay((
2020-09-22 19:00
i have absolutely no clue
2020-09-22 18:56
reported for excluding brazilians
2020-09-22 18:57
Assume 4x^2-3 = y, differentiate both sides w.r.t x d/dx (4x^2-3) = dy/dx 8x= dy/dx dx = dy/8x Your problem was int (4x^2-3)^7 dx substituting value of y and dx int y^7 dy/8x = 1/8x . y^8/8 resubstitute value of y and you get your answer (4x^2-3)^8/64x btw this is so ez, you need to work upon your basics
2020-09-22 19:03
You made the same mistake as #59
2020-09-22 19:03
what do you mean by integrating the terms 1 by 1 in #60 ? do you mean multiply all the seven brackets and then integrate?
2020-09-22 19:11
Yes.
2020-09-22 19:11
It gives the same answer as mine, just expanded and simplified
2020-09-22 19:13
(4x^2-3)^7 = gyazo.com/0aed911a26ea77b3ff36405f66846a.. x(4x^2-3)^7 = ((4x^2-3)^8)/64 The one that I originally posted had no x outside the brackets so you can not use this to solve it: gyazo.com/8bfeb4038e647e28f75fd1c1b4d2ad..
2020-09-22 19:17
hmm you're right yeah I realised the 1/8x has to be included in the integration as well, substitution won't work, need to expand and integrate I never realized this before, this is probably the first time I've encountered a problem like this
2020-09-22 19:29
IITian spotted.
2020-09-22 19:03
bruh moment
2020-09-22 19:06
flag checks out
2020-09-22 19:26
????? content
2020-09-22 19:27
#75
 | 
Brazil Catatauu
im dumb but i want to know how to solve this, if anyone knows, pls tell me too.
2020-09-22 19:03
5
2020-09-22 19:04
This was the answer: gyazo.com/0aed911a26ea77b3ff36405f66846a.. You were close tho
2020-09-22 19:05
#83
 | 
Belgium TastyRomeo
PhD in math here, use Newton's binomial theorem. (4x^2-3)^7 = sum_{i=0}^7 n! / ( i! (n-i)! ) (4x^2)^i 3^(7-i). Using linearity of the integral you'll get sum_{i=0}^7 n! / ( i! (n-i)! ) 4^i 3^(7-i) x^(2i+1) / (2i+1)
2020-09-22 19:09
You dont man. 🤯
2020-09-22 19:24
Yeah fuck this shit, today i had math final graduation exam , and in the first calculator free section we had this type of shit to figure out without calculator honestly wtf
2020-09-22 19:25
L papers yes?
2020-09-22 19:26
yes 4 sure XD
2020-09-22 19:26
#95
 | 
United States me_0_major
that's really aids to solve with any method, you could do integration by parts where u=(4x^2-3)^7 and v=1 then repeat 7 times to reduce, which will probably get you there faster than finding the polynomial
2020-09-22 19:26
There isn't any methods. Only way to do it is: gyazo.com/341d0488b0caf76bae07582e4e44d1.. Then integrate all the terms and finally you get this answer: gyazo.com/0aed911a26ea77b3ff36405f66846a.. But ye I didn't actually have to solve it. Just had to know how it COULD be solved.
2020-09-22 19:29
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