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0.9999=1
s1mple | 
Canada roylin 
Prove it
2019-12-14 22:26
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#1
s1mple | 
Canada roylin 
Wtf bump
2019-12-14 22:28
#44
 | 
Kuwait Onlytruth3 
in this case it is not true
2019-12-14 23:54
#2
REZ | 
Finland petemeister 
0.999... is the sum of the geometric series a, ar, ar^2, ar^3..., ar^inf, where a = 0.9 and r = 0.1. A formula can be derived for sum of geometric series, and the formula is a((1-r^n)/(1-r)). When you substitute the values a = 0.9, r = 0.1 and n = inf, you get 0.9((1-0.1^inf)/(1-0.1)), which evaluates to 1. Edit: I got baited, 0.9999 != 1
2019-12-14 23:05
0.9999... = 1
2019-12-14 23:12
+0.9999...
2019-12-14 23:20
10/10
2019-12-14 23:58
10/10 = 8/8 = 0.9999...
2019-12-14 23:59
=1^(1/2)
2019-12-15 00:57
#32
s1mple | 
Canada roylin 
loooool
2019-12-14 23:14
Got me. Whatever, I'm tired of convincing people of it anyway, so at this point I'm only doing it for myself anyway. Edit: anyway
2019-12-14 23:20
+0.9999
2019-12-14 23:56
3=4
2019-12-14 23:01
x = 0.999... | ×10 10x = 9.99999 | -x 9x = 9 | :9 x = 1
2019-12-14 23:01
#6
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Spain Granjero 
remove "gg_" from your name
2019-12-14 23:02
SPANISH EDUCATION LUL
2019-12-14 23:03
#13
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Spain Granjero 
I am not Spanish
2019-12-14 23:03
reported for fakeflagging
2019-12-14 23:03
#15
 | 
Spain Granjero 
Are you baiting or actually dumb?
2019-12-14 23:04
#19
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Spain Granjero 
that's not what you wrote lol
2019-12-14 23:05
what dont you understand about my original message
2019-12-14 23:06
I don't think you understand anything
2019-12-14 23:57
why insult me(((
2019-12-14 23:59
I'm not))
2019-12-14 23:59
you say i dont know anything(((
2019-12-15 00:00
I said you don't understand anything
2019-12-15 00:01
same thing mens(((
2019-12-15 00:01
#8
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Belgium wiikz 
nickname checks out
2019-12-14 23:03
lmao did u not do this in school
2019-12-14 23:03
#27
 | 
Belgium wiikz 
b8ted
2019-12-14 23:12
#31
Frankie | 
Czech Republic VojtaA 
you're not gonna save it, you just proved, that you're an idiot :)
2019-12-14 23:13
#35
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Belgium wiikz 
This is a real way of proving it, this stupid equation above doesnt mean sh*t wikimedia.org/api/rest_v1/media/math/ren..
2019-12-14 23:18
#41
Frankie | 
Czech Republic VojtaA 
It's sad that you have to look for informations on internet after getting solid rekt by 14yo guy from Czech republic :) And btw. his answer is right :)))))
2019-12-14 23:21
#24
Frankie | 
Czech Republic VojtaA 
but he is right you idiot
2019-12-14 23:09
ty prodka
2019-12-14 23:15
#57
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Germany MackyGee 
Flag and name checks out
2019-12-15 00:07
education checks out
2019-12-15 00:07
#59
 | 
Germany MackyGee 
Yeah, german education >>>>> poorland education
2019-12-15 00:08
#5
 | 
China Rynaki 
1/3 = 0.33333... 0.33333... + 0.33333... + 0.33333... = 0.99999... 1/3 * 3 = 1 0.99999... = 1
2019-12-14 23:02
#9
autist | 
Brazil hrp_ 
x = 0.(9) 10x = 10 * 0.(9) = 9.(9) 10x - x = 9.(9) - 0.(9) 9x = 9 (9x)/9 = 9/9 x = 1
2019-12-14 23:03
#10
 | 
United States porcupine2020 
0.999999 with the 9 repeating is =1, not 0.9999=1 but i'll just assume you mean that. 1/9=.1111111 repeating 1, so 1/9*9=1, .11111111*9=.999999999 repeating, so .999999 repeating=1
2019-12-14 23:03
2 plus 2 is 4 minus 1 thats 3
2019-12-14 23:05
kwik mafs
2019-12-14 23:05
#21
Quake | 
Ukraine s1v9mple 
Q U I K M A F F Z
2019-12-14 23:06
Du-du-ku-ku-dun-dun
2019-12-14 23:12
#20
Monkey | 
Singapore go0s3 
y.o.u=gay
2019-12-14 23:05
#23
confused | 
Brazil 68419 
where's the 0.00000000001 Math gods?????????????????????
2019-12-14 23:06
theres no such number thats infinitely small its axiomatic
2019-12-14 23:09
#26
JZFB | 
Bosnia and Herzegovina mirzach0W 
0.9999... = 1.0 cuz 9 bigger than 5 and then 1.099..
2019-12-14 23:10
1/3 x3 = 1 0.33333....x 3 = 0.9999... 0.999... = 1
2019-12-14 23:13
#33
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Georgia NikaT 
no
2019-12-14 23:14
#36
Snax | 
Sweden XSizexd 
for sure, 0.4999 > 0 LUL logic
2019-12-14 23:18
tppr.me/QPYBg computer says yes
2019-12-14 23:19
That depends on what type of computer you are using. Computers can only save finite no. of places after decimal, so truncation error depends on what kind of precision your system uses.
2019-12-14 23:21
Many people have given some simple proofs, 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 = 2.99999.. = 3 etc
2019-12-14 23:20
#45
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Kuwait Onlytruth3 
cute but proof for wrong question. His question didnt include ...
2019-12-14 23:55
Oh, I assumed he meant it. Then obviously his statement is false as the epsilon is 0.0001. So any proof involving 0.9999=1 must be having an incorrect step in it.
2019-12-15 00:02
yeah but epsilon is banned...
2019-12-14 23:59
1/3 = 0,33333... 0,33333...*3= 0,99999... 1=0,99999...
2019-12-14 23:24
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