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0.999... = 1
 | 
Germany xsyzzz12345678 
simple proof x = 0.999... | ×10 10x = 9.99999 | -x 9x = 9 | :9 x = 1 0.999 = 1 q. e. d.
2019-12-14 22:10
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#2
 | 
Canada roylin 
9x = 9 x = 1 ???? x = 0.9999 prove that 0.9999 = 1
2019-12-14 22:16
#24
autist | 
Brazil hrp_ 
9x = 9 (9x)/9 = 9/9 x = 1
2019-12-14 22:18
#25
 | 
Canada roylin 
wheres the 0.9999 in your equation
2019-12-14 22:19
#99
autist | 
Brazil hrp_ 
#30
2019-12-14 22:50
#130
 | 
Canada roylin 
Wait I’ve made a mistake You can’t transform x=0.999 into 10x=9.9999 In x=0.9999 it is smaller than 1 by 0.00001 But 10x=9.99999 it is still smaller than 10 by just 0.000001 but it should be 0.00010
2019-12-14 23:01
#146
autist | 
Brazil hrp_ 
0.(9) is NOT smaller than 1 by anything. The more 9s you add, the more close it get to 1 ( 0.999999... ) if you add infinite 9s ( 0.(9) ) it is not smaller.
2019-12-14 23:05
#159
 | 
Canada roylin 
0.9 has infinite 9 I.0 has infinite 0 Every 9 you add every 0 you add It will not catch up
2019-12-14 23:11
#161
autist | 
Brazil hrp_ 
ok i am not taking your baits anymore have a good day
2019-12-14 23:11
#163
 | 
Canada roylin 
Why mad???
2019-12-14 23:12
#178
autist | 
Brazil hrp_ 
1.(0) = 1 doesn't matter how much 0s you add 0.(9) + one 9 is 10 times closer to 1 than 0.(9)
2019-12-14 23:23
#179
 | 
Canada roylin 
But still never reaches? Or you haven’t explained to me
2019-12-14 23:24
#184
autist | 
Brazil hrp_ 
it does reach because 0.(9) has infinity 9s
2019-12-14 23:26
#187
 | 
Canada roylin 
#165
2019-12-14 23:27
thats not a mathematical proof...
2019-12-14 23:12
#165
 | 
Canada roylin 
1.0>0.9 1.00>0.99 1.000>0.999 1.0000>0.9999 Etc
2019-12-14 23:13
yes, but as the 9s increase, so to speak, the limits of the difference approach zero
2019-12-14 23:14
#168
 | 
Canada roylin 
Yes but it never reach 0
2019-12-14 23:15
do you know calculus or at least precalc?
2019-12-14 23:15
#170
 | 
Canada roylin 
Nope gr10 lol
2019-12-14 23:16
oh then its not your fault you will learn what limits are eventually, friend
2019-12-14 23:16
#173
 | 
Canada roylin 
Ok tell me what are they??
2019-12-14 23:17
imagine an convergent infinite sequences like the one discussed. as the sequence progresses, its approaches a single number which is the 'final' value essentially
2019-12-14 23:19
#176
 | 
Canada roylin 
Idk if this make sense or is related but... For ex: you get a 99% on a test. Your next test you get 100 and your average is 99.5 You keep getting 100s but the average never reaches 100. It is and will never be 100
2019-12-14 23:22
yes, this is an example of a limit problem
2019-12-14 23:25
#183
 | 
Canada roylin 
Sooooooo it doesn’t reach 100??
2019-12-14 23:26
yes. i can see where youre going with this. after an infinite amount of tests however, you will get 100%, according to limits
2019-12-14 23:27
#189
 | 
Canada roylin 
OK
2019-12-14 23:29
it seems like 0,(9) will never reach 1, but remember that 0,(9) is by definition infinitely long, so it does
2019-12-14 23:30
#193
 | 
Canada roylin 
I guess you’re right but I don’t agree with the calculus limits thing
2019-12-14 23:31
dont worry, i think gr12 you learn
2019-12-14 23:32
#197
 | 
Canada roylin 
Thx, let’s see if they can change my mind
2019-12-14 23:33
#222
 | 
United States Tushkaaa 
honestly nobody cars
2019-12-14 23:56
#224
 | 
Canada roylin 
true, math at this level is useless anyways
2019-12-14 23:57
unless u go into physics, engineering, etc
2019-12-15 00:30
#260
NiKo | 
United Kingdom lr1015 
nothing is infinitely divisible. eventually, the 100s add up and the avg is 100.
2019-12-15 00:33
#198
autist | 
Brazil hrp_ 
omg can't you understand that 1.00000000 is equal to 1 ? 0.9 is 0.1 out of 1 as it is 0.1 out of 1.0000000000000000000000000000 again, when 0.(9) tends to infinity, it gets infinity closer to 1 or 1.(0) or 1.00000000000000000000000000 and it reaches it.
2019-12-14 23:34
#205
 | 
Canada roylin 
When am I saying 1.00000=/= 1?? Lol And how does 0.9999 reach 1 What I was trying to say is because 1.0000000>0.999999 then 1.0(infinite) > 0.9(infinite) The .0000 is easier to visualize
2019-12-14 23:40
#206
 | 
Canada roylin 
Brb shower
2019-12-14 23:41
#207
autist | 
Brazil hrp_ 
you're just wrong, lmao. Not answering anymore, unless you pay me. Bye !
2019-12-14 23:41
#209
 | 
Canada roylin 
Ok I don’t understand why you have to be so salty though I never said I was right, but you know I proved you wrong or you don’t have answers so you have nothing to say Not answering unless you pay me Have a good day!
2019-12-14 23:49
#210
autist | 
Brazil hrp_ 
you didn't prove me wrong lmao. I just don't care enough to teach you limits in hltv kkkkkkkkk
2019-12-14 23:50
#211
 | 
Canada roylin 
haha of course you responded pussy boy
2019-12-14 23:51
#213
autist | 
Brazil hrp_ 
yeah i am retard I always do like that but you also responded me, pussy boy !
2019-12-14 23:51
#215
 | 
Canada roylin 
feels bad to lose an online argument to a delusional 15y/o sucks doesnt it
2019-12-14 23:53
#216
autist | 
Brazil hrp_ 
yes omg it hurts so much im gonna cry 😂😂
2019-12-14 23:54
#217
 | 
Canada roylin 
#161 i dont know why you have to be so salty about it
2019-12-14 23:55
#219
 | 
United States Tushkaaa 
imagine if all math teachers just say "it will not catch up" everyone knows math now
2019-12-14 23:55
#221
 | 
Canada roylin 
cause it doesnt???
2019-12-14 23:56
#223
 | 
United States Tushkaaa 
teach me limit again, i just failed my calc 1
2019-12-14 23:57
#226
 | 
Canada roylin 
i dont know limits either
2019-12-14 23:58
#228
 | 
United States Tushkaaa 
jk, im asian lmao. whoever above did lecture is right. you'll get it one day
2019-12-15 00:00
#230
 | 
Canada roylin 
aight explain what limit is or i wont believe or you will continue to argue with a "retard"
2019-12-15 00:01
#239
 | 
United States Tushkaaa 
so basically .000000000000001 is =0. imagine curve on graph, a function where the f(x) will never reach 0, but it get really really closer and closer. so in limit, as the function gets closer to x=0, infinite times, then it will be at 0 what math taught me first is 0.0000000001 is not exactly 0 then it came back at me saying yes can be 0, here's "proof"
2019-12-15 00:08
#250
 | 
Canada roylin 
0.00000000000000001=0 ??????
2019-12-15 00:17
#251
 | 
United States Tushkaaa 
in highschool, yes in college, not exactly but yes
2019-12-15 00:19
#252
 | 
Canada roylin 
ok then probably shouldnt take calculus
2019-12-15 00:20
>not exactly but yes what, like other number systems?
2019-12-15 00:38
#234
 | 
Canada roylin 
bump
2019-12-15 00:05
#243
 | 
United States Tushkaaa 
so what we do with limit is what if x=1 when 2 / (x-1) your calculator says "error", and we study why it is "error" and how we basically solve it
2019-12-15 00:13
but you can't have any digits after the recurring sequence...
2019-12-14 23:06
thats why you shouldve use 0,(9) as the notation mens))
2019-12-14 23:07
no? when you multiply anything by 10, the decimal essentially moves left one so 0,(9) * 10 = 9,(9)
2019-12-14 23:06
#154
 | 
Canada roylin 
1-0.99=0.01 X10 10-9.99=0.01 It doesn’t work
2019-12-14 23:09
cant tell if bait but 0,(9) is infinite, there is no such thing as 0,(0)1
2019-12-14 23:10
#160
 | 
Canada roylin 
#159 then
2019-12-14 23:11
5x = 5 (5x)/5 = 5/5 x = 1 burro demais
2019-12-14 22:41
#97
autist | 
Brazil hrp_ 
yeah ? I just did point it out because OP seems to have a problem with dividing numbers. burro do caralho, só fala merda sem saber.
2019-12-14 22:48
0.999 is x at the beginning and we transformed it into 1 using only valid operations, meaning both statements x = 0.999 and x = 1 are true therefore 0.999 = 1
2019-12-14 22:22
#39
 | 
Canada roylin 
10x = 9.99999 -x 9x = 9 here you subtracted x or "1" but that is not 1, you subtracted a 0.99999
2019-12-14 22:24
He subtracted x from the other side but 0,999999 from the other side it doesn't work like that
2019-12-14 22:28
#53
 | 
Canada roylin 
+1
2019-12-14 22:29
x=0,(9) 10x=9,(9) 10x-0,(9)=9,(9)-0,(9) 9x=9 x=1 which part you have problem with
2019-12-14 22:59
#143
 | 
Canada roylin 
#130
2019-12-14 23:04
#103
autist | 
Brazil hrp_ 
of course it does work like that. 10x - x = 9x if x = 0.9999 10*0.9999 = 9.9999 9.9999 = 10x 9.9999 - 0.99999 = 10x - x
2019-12-14 22:52
finaly one smart guy :)
2019-12-14 22:53
#229
 | 
Poland Adisky 
You are so wrong. You cant just assume that x=0.999.. Thats what you want to prove so you cant substract x from 9.9999..
2019-12-15 00:01
he's not trying to prove that x = 0.999... He's trying to prove that 1=0.999... x is just a variable that he's created to make it easier to see what he's doing
2019-12-15 02:35
mind blowing
2019-12-14 22:10
Faceit level 2 + faceit level 3 = faceit level 5
2019-12-14 22:11
i are think that
2019-12-14 22:11
yes
2019-12-14 22:11
#9
 | 
Poland Hanse 
We live in a world where people who can't even divide properly want to change math laws
2019-12-14 22:11
math god
2019-12-14 22:12
it just doesn't make sense.. clown spotted
2019-12-14 22:13
where?
2019-12-14 22:15
how did you just change 9.999999999 to 9
2019-12-14 22:14
i subtracted x
2019-12-14 22:15
#20
oBo | 
Korea Moms_touch 
15yo knowledge
2019-12-14 22:15
+1
2019-12-14 22:21
How did you -x if there is no x on the right side of equation?
2019-12-14 22:17
there is
2019-12-14 22:55
I established in the first line that x = 0.999 so subtracting 0.9999 is the same as subtracting x
2019-12-14 22:56
I see
2019-12-14 22:59
like this: x=0,(9) 10x=9,(9) 10x-0,(9)=9,(9)-0,(9) 9x=9 x=1
2019-12-14 23:02
Ye ye I understood
2019-12-14 23:10
cool mens
2019-12-14 23:11
x = 0,999999999999999999 //*10 10x = 9,99999999999999999 //-x 9x = 9,999999999999999 - x so wtf are you talking about
2019-12-14 22:18
yea but 9.999 - 0.999 equals 9 so wtf is your problem you have to insert 0.999 for x on the right side
2019-12-14 22:20
So you're not even using correct mathematical formulas... you're probably - iq
2019-12-14 22:20
You're just randomly trying to prove things that can't be proved, the way you are trying to...
2019-12-14 22:21
9,(9) - 0,(9) = 9 how you not math:?
2019-12-14 23:03
#33
oBo | 
Korea Moms_touch 
You trolling right
2019-12-14 22:24
? wut
2019-12-14 22:24
tell me whats not correct about it? 9.999 - 0.999 works just fine
2019-12-14 22:24
I don't wanna lecture you but should probably go to math class or something
2019-12-14 22:25
ok got it youre just talking shit and dint know anything
2019-12-14 22:29
ok bro YOU'RE SO FUCKING DUMB
2019-12-14 22:29
#70
 | 
Canada roylin 
Because you did 9.9999-0.9999 as x but later on you made x 1
2019-12-14 22:33
bc thats how proofs work?
2019-12-14 23:03
#147
 | 
Canada roylin 
#130 I made mistake
2019-12-14 23:05
#38
 | 
Romania decis1ve 
if x=0.999 then why 10x-x is 9x. tf are u doing
2019-12-14 22:24
I leave x as a variable on the left, whats the problem with it?
2019-12-14 22:29
You can't do that.
2019-12-14 22:31
this is very basic math... 10x-x=9x for all real values of x
2019-12-14 23:04
why are you stupid you make my eyes bleed
2019-12-14 22:25
#57
2019-12-14 22:30
#31
 | 
Romania decis1ve 
+1000
2019-12-14 22:23
low iq, you just insert 0.999 for x on the right side...
2019-12-14 22:25
How do you +0,99999999 but -x from other side? it should be 10x-0.9999999999 = 9 or 9x = 9,999999999 - x
2019-12-14 22:30
what? I do -0.999 on both sides
2019-12-14 22:35
Then it's this 10x-0.9999999999 = 9
2019-12-14 22:35
yes and 0.999 = x, as we can see in the first equation so you can substitute 0.999 for x, then you have 9x = 9
2019-12-14 22:40
He is just baiting
2019-12-14 22:31
+1
2019-12-14 22:32
which is equal to +0.999...
2019-12-14 22:36
yes, in xsyzzz12345678 mind
2019-12-14 22:38
0.999... brain cell lul
2019-12-14 22:39
you will have 0,000000000000...1x = 9 ritard
2019-12-14 22:23
you cant have digits after the recurring decimal by definition
2019-12-14 22:28
you cant have brain
2019-12-14 22:29
nice argument
2019-12-14 22:30
#34
 | 
United Kingdom smackP 
fuck off mrs caldwell you bitch
2019-12-14 22:24
#43
nEGRo | 
Lithuania inchiss 
how can you subtract x lol x = 0.999... | ×10 10x = 9.99999 | /10 x = 0.999999
2019-12-14 22:25
He isn't using any correct mathematical equations
2019-12-14 22:27
why cant I? 10x - x = 9x which should be pretty clear, and 9.999 - x = 9.999 - 0.999 = 9
2019-12-14 22:31
#232
 | 
Poland Adisky 
No its wrong
2019-12-15 00:04
how is it wrong?
2019-12-15 00:04
#235
 | 
Poland Adisky 
When you do 9.999.. - 0.999.. you assume x=0.999.. You are to prove it so how can you use it in equation wtf
2019-12-15 00:06
I stated it in the first line that x and 1 are the same
2019-12-15 00:07
#238
 | 
Poland Adisky 
Stop trolling
2019-12-15 00:08
yeah I'm trolling and you aren't just too stupid to handle some abstraction...
2019-12-15 00:11
#271
 | 
Poland Adisky 
Fak me I read that wrong I guess ur right
2019-12-15 00:43
this is pretty bad
2019-12-14 22:29
why?
2019-12-14 22:32
the fact you're oblivious to the obvious flaw in this equation explains it all. Find it yourself.
2019-12-14 23:32
#55
 | 
United States not_fbi 
who 🚗🚗
2019-12-14 22:30
enough people that it got over 60 replies in 20 minutes
2019-12-14 22:32
#68
 | 
United States not_fbi 
who 🚗🚗
2019-12-14 22:32
dont google german math
2019-12-14 22:30
German education lul
2019-12-14 22:30
#76
 | 
Germany Neckarstadion 
he is fakeflagging
2019-12-14 22:36
ok
2019-12-14 22:37
#60
 | 
Hungary EZ4WINLANDIA 
how is hltv still stuck on this. Is this what math is for y'all?
2019-12-14 22:31
This was one of the top threads a couple of hours ago hltv.org/forums/threads/2207066/og-fans-.. (Name is misleading, it is math related)
2019-12-14 22:59
#62
KSCERATO | 
Brazil frkkZ 
1/3 = 0.3333333 3*(1/3) = 3/3 = 3*0.33333 = 1
2019-12-14 22:31
+1 another wayof proving it...
2019-12-14 22:33
its fucking 0.(3) not 0.33333
2019-12-14 22:36
the result is still the same
2019-12-14 22:54
#115
autist | 
Brazil hrp_ 
he obviously meant 0.(3) and 0.(9) = 1
2019-12-14 22:56
#71
 | 
Canada roylin 
You didn’t prove 0.333333=1/3
2019-12-14 22:34
#89
 | 
Canada roylin 
You can’t write 1/3 as a decimal If you would like to try go for it
2019-12-14 22:41
en.wikipedia.org/wiki/Repeating_decimal you can with the notation writing a line or a dot over it...
2019-12-14 22:42
#96
 | 
Canada roylin 
Yes you can but it still doesn’t make it 1/3
2019-12-14 22:46
yes it does...
2019-12-14 22:51
#139
 | 
Canada roylin 
no 1/3 x 3 = 1 0.333333 x 3 = 0.999999 Everytime you add a 3 to 0.3333 you add a 9 to 0.99999 You will never reach 1
2019-12-14 23:03
It's a notation. Just like with dy/dx for differentiation, which isn't actually a fraction.
2019-12-14 23:02
Absolutely fantastic. This proof perfectly demonstrates the relation between 0.333-, which most would agree is just a notation for 1/3 and 0.999-, which is a similar notation for 1.
2019-12-14 23:00
0.(9) can be written as the sum from k = 1 to infinity of 9*(1/10)^k. The formula for infinite sums is a*r/(1-r), in this case a = 9, r = 1/10. 9*(1/10)/(1-1/10) = (9/10)/(9/10) = 1. Just another way of proving it.
2019-12-14 22:35
The actual proof: For 2 numbers to be different there has to be a third one between them. There is no such number between 0.(9) and 1
2019-12-14 22:36
#80
oBo | 
Korea Moms_touch 
Not sure all these replies are serious or just trolls... So many toilet cleaners. This proof is really basic thing 15yo kids learning to
2019-12-14 22:39
(1-0.99999999999999999999999999)/8
2019-12-14 22:40
gamer
2019-12-14 22:55
+0.99999
2019-12-14 22:40
0.9999- Is just a notation, just like 0.3333- represents 1/3.
2019-12-14 22:39
yeah, a different notation for 1
2019-12-14 22:41
Easier one: 1/3 = 0.3333... 3/3 = 0.9999... 1 = 0.9999...
2019-12-14 22:44
1 = 1
2019-12-14 23:03
multiplying by 10 and extracting itself is basically multiplying by 9 therefore you just said that 1=0,99999 so it does not prove it i mean its like saying 0,999... * 9 is 9, while saying 0.999... = 1 with that logic, i can argue that 5 is 10, while saying 1 is 2 we only accept it as 1 because its easier, like we do it with sinx = x, when x is small because its easier
2019-12-14 22:46
splitting x9 does not make it mathematically wrong, tell me which step was illogical also you can't prove that 1 = 2 the way I did, show me if you can
2019-12-14 22:50
9,999... - 0,999.... is 8,999...1 not 9 if 9,999... has n times 9 after the decimal, then 0,999.... must have n+1 times 9 after the decimal. so you just did not care about 0,000...9 which is 0,000...1 when you divide it by 9, therefore the gap between 0,999 and 1 is gone because of your stupid math.
2019-12-15 02:21
I said in quote, "with that logic, i can argue that 5 is 10, while saying 1 is 2". Key words being, "argue", "logic". "argue"; as you can read, i did not say that i can prove, which is actually impossible since 1 is clearly not 2. "logic"; as you can read, i did not say that i can "prove"(quoting #100) with your method, rather logic, meaning that with making mathematical mistake.
2019-12-15 02:27
Also, in real life, we can not be that precise. For instance, as far as we know, 0,000...1 is just too small for us to care about. I mean, if it we were to use it as to measure distance, it could be even smaller than atoms. So, what is the point?
2019-12-15 02:45
0/8
2019-12-14 22:54
if you have 10 "x"es and take one x away, you only have 9 "x"es, just like if you have 10 cakes and take one away you only have 9 cakes left
2019-12-14 22:54
x is a placeholder and 0.999.. is infinite cant make this equation.
2019-12-14 22:56
x is a placeholder for 0.999, having recurring digits doesnt stop it from being able to be a placeholder for it
2019-12-14 22:58
x cant be 0.99999.... thats wrong
2019-12-14 22:59
why not??? what is the rule saying it?
2019-12-14 23:00
somewhere you will find it, but this is not possible. x describes one or more values at once, but exact ones. 0.99... isnt exact
2019-12-14 23:02
Why would it not be an exact value?
2019-12-14 23:03
there are infinite 9s
2019-12-14 23:05
Notation
2019-12-14 23:14
yes it can, there is no such rule, you can even have any real numbers like pi, e or 0.1010010001000100001.. as x you are just making up bullshit, if there is such a rule I'll admit you're right but I have no reason to believe you..
2019-12-14 23:04
yes, i am making up bullshit because i thought this is a bait but after 1 mins of research ive realized its a known mathematical phenomenon. 0.9999.... = 1
2019-12-14 23:11
0/8
2019-12-14 22:53
nice argument
2019-12-14 22:55
'10x = 9.99999 | -x' u subtracted 'x' from both sides and got '9' from '9.99999999' eulers callin bruh
2019-12-14 22:55
9.9999 - x = 9.9999 - 0.9999 = 9
2019-12-14 22:55
9.9999 - x = 9.9999 - x
2019-12-14 23:04
this is basic maths that mathematicians agree on
2019-12-14 22:56
It's nice proof but the idea behind this is quite simple. It's called limit.
2019-12-14 22:57
#127
 | 
China Rynaki 
Even simpler proof: 1/3 = 0.33333... 0.33333... + 0.33333... + 0.33333... = 0.99999... 1/3 * 3 = 1 0.99999... = 1
2019-12-14 23:01
ok
2019-12-14 23:11
I feel sad for you bro. So many people don't understand the subtraction step here. Your proof is perfectly fine and 0.99999... is indeed equal to 1. There's no paradox here. Here's a more intellectual proof if you want: All real numbers exist on a number line. So any two number have a specific distance between them. Let that distance be epsilon. Because 0.999... has infinite 9s, for any given epsilon, you can always find a delta such that delta < epsilon. This means epsilon should be zero in order to find no delta. 0 epsilon means 0 distance between 0.999... and 1. Hence 0.9999... = 1 :) Similarly you can prove 1.999999 =2, 2.99999.. = 3 etc
2019-12-14 23:26
did you just say 1(9)=3? never seen that one before
2019-12-14 23:23
Oh, typo. Corrected it
2019-12-14 23:24
#244
 | 
Poland Adisky 
Yes but his proof is bad
2019-12-15 00:13
His proof is not wrong tho. That's what matters in mathematics :)
2019-12-15 00:26
math retard
2019-12-14 23:20
Love you bro but I have better proof 1/3 = 0,33333... 1/3 × 3 = 1 0,33333... × 3 = 0,9999 0,99999 = 1
2019-12-14 23:24
#188
Aleksib | 
Egypt Tywin 
Well, yeah but no
2019-12-14 23:29
#192
Aleksib | 
Egypt Tywin 
Then you might as well say 0,9 equals 1
2019-12-14 23:31
no you cant, my proof wouldn't work for it
2019-12-14 23:35
#201
Aleksib | 
Egypt Tywin 
You dont understand how math works
2019-12-14 23:36
geh zurueck zur schule und du weisst warum es falsch ist.
2019-12-14 23:32
wikipedia says otherwise... de.wikipedia.org/wiki/0,999%E2%80%A6
2019-12-14 23:36
nicht nur sachen abschreiben sondern nachdenken. auf der einen seite rechnest du +9 auf der anderen x10. Mit x10 auf der 0.999 seite laesst du eine zahl weg. Dadurch erklärt sich warum du auf das falsche Ergebnis kommst. Rechne es einfach nach mit 4 Stellen hinter dem Komma. 0.9999*10=9.999 9.999-0.9999=8.9991 8.9991/9=0.9999 Das gleiche Prinzip gilt auch im Unendlichen.
2019-12-14 23:52
aber es sind ja unendlich nachkommastellen und unendlich minus 1 ist immer noch unendlich
2019-12-14 23:58
nein, es ist eins weniger als unendlich. du suchst auch noch den schnittpunkt der standard e-funktion mit der x-achse..
2019-12-15 00:09
ne unendlich minus 1 ist unendlich, google das einfach mal, die e funktion ist was ganz anderes, da geht es um grenzwerte, hier nicht
2019-12-15 00:14
hab es gegoogelt und nichts brauchbares herausgefunden. Wenn du die e-funktion -e^x+1 nimmst haettest du bei -x gegen unendlich ja ein y=0.999(unendlich) und somit ein y=1. Die e- funktion wird aber niemals die 1 erreichen. somit ist deine logik falsch und du hast mir auch noch zugestimmt.
2019-12-15 00:25
#290
autist | 
Brazil hrp_ 
no its not the same principle for infinite numbers
2019-12-15 04:12
ok thanks
2019-12-14 23:46
What's the point of the |
2019-12-14 23:52
#231
flusha | 
Finland ))) 
Someone hasn't studied math at all :DDD
2019-12-15 00:03
... 10x = 9.99999 | -x 10x - x = 9.99999 - x 9x = 9.99999 - x | /9 x = 1.11111 - x/9 LUL
2019-12-14 23:55
1 = 2 1/0 = infinity 2/0 = infinity 1 = 2
2019-12-15 00:08
1/0 is not defined, start paying attention in math class...
2019-12-15 00:09
GJ Sherlock.
2019-12-15 00:14
#247
 | 
Portugal S4nd 
x = 0.(9) 10x - 1 =\= 9x what you want is 10x - x = 9x
2019-12-15 00:14
I did -x?
2019-12-15 00:15
I got lost at step 2, my dick got stuck in the toaster.
2019-12-15 00:42
#270
 | 
Portugal Tizen 
there is no way youre that dumb
2019-12-15 00:42
#299
 | 
Portugal NMS467 
+1
2019-12-15 05:16
x = 0.999... | ×10 10x = 9.99999 | -x 9x = 9 - x thats correct dude
2019-12-15 00:54
Yes ofc it is 1/3 is 0.3333333..... 1/3 x 3 is 3/3 and its 1 0.33333... x 3 is 0.99999... And its 1
2019-12-15 04:14
There is no use for 0.9 recurring in real world applications so it might as well be 1. Anyone attempting to argue otherwise is a fool because it doesn't matter whether or not it is actually 1. Not sure if you got lazy to type dots at the end but 0.999 and 0.9 recurring are not the same things and 0.999 is definitely not equal to 1.
2019-12-15 04:32
you can prove w sigfigs
2019-12-15 04:35
#294
 | 
Hong Kong freehk 
no ur wrong
2019-12-15 04:37
#297
 | 
Portugal NMS467 
That is actually wrong, this is the correct version: <=> x = 0,(9) | *10 <=> 10x = 9,"(9)" | -x <=> 9x = 8,(9)1 | :9 <=> x = 0,(9),, note: "00"=infinite; Notice that 0,(9) has 00 decimals and when you *10 you the the number's decimals got reduced by one unit like here: e.g. =>0,999 (3 decimals) *10 = 9,99 (2 decimals) And the same happens with your example, just because you are using the 0,(9) (number with 00 decimals) it doesn't mean that, when multiplying by 10, you end up with the same 00 decimal places like 0,(9), but 00 - 1 decimal units, like showing in the example above; That being said, when subtracting x=0,(9) to 9,"(9) (with 00 - 1 decimal places)" you end up getting 8,(9)1 (with 00 decimals), like this example: e.g. => 9,99 - 0,999 = 8,991 Finally, when dividing by 9 you end up with 0,(9) (with 00 decimals) : e.g. => 8,991 : 9 = 0,999,, Just because 0,(9) is a periodic infinite tithe with 00 decimal places it doesn't mean it's different from the other numbers.
2019-12-15 05:23
Who the fuck cares about math, it's 2k20 and people still try to use their brain instead of using a computer
2019-12-15 05:16
#300
 | 
Portugal NMS467 
bait?
2019-12-15 05:16
Just common knowledge
2019-12-15 05:17
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