TODAY. i must gain some thumbs.. umm... actually our math teacher told us that 0.999...(infinite) is equal to 1.
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TODAY

i must gain some thumbs

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Views: 15071
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Submitted: 11/16/2012
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User avatar #61 - perfonator (11/17/2012) [-]
umm... actually our math teacher told us that 0.999...(infinite) is equal to 1.
#45 - deltaxomega ONLINE (11/17/2012) [+] (4 replies)
X=0.999..........
10X =/= 9.999.........
10X = 9.99..........0 (No matter where you feel like ending your line of 9's a zero must have a zero place as a marker at the end.)
10X - X == 9.99..........0 - 0.999....... = 8.99..........................1

1/9= 0.111.......
9* 1/9 =/= .999....... (you must place 1 under the whole number before * or / Fractions.)

9/1 * 1/9 = 9/9 = 1
User avatar #19 - robarth (11/16/2012) [+] (4 replies)
well it is valid, you see 1/3 = 0,333... right?
3 x 1/3 = 1 right?
keep with me
3 x 0,333... = 0,999... = 1 right?
there you go
User avatar #21 to #19 - robarth (11/16/2012) [-]
go watch Vihart
User avatar #115 - warrenzthehero (11/17/2012) [-]
Decimals are imprecise. This is why fractions are better.
User avatar #104 - hugsforfree (11/17/2012) [+] (1 reply)
One third = 0.3 recurring

Two thirds = 0.6 recurring

Three thirds = 0.9 recurring

Decimal system has many holes.
User avatar #53 - landrower (11/17/2012) [+] (2 replies)
this is something that i knew when i was twelve... is funnyjunk really full of children?
User avatar #122 - judoman (11/17/2012) [+] (5 replies)
...well yes, 0.999.. IS = 0.1
That's true. You have a good proof for it right there that would be revolutionary if shown to the Romans in antiquity.
User avatar #133 to #122 - imapatheticbanana (11/17/2012) [-]
You mean 0.999... = 1?
User avatar #105 - nickhols (11/17/2012) [-]
Sure is uneducated in here
The number 0.111... is not representative of 0.111, but rather 0.1 repeating, so the proof is sound, though there are many more intuitive proofs.
This has to do with the idea that under the real number system, which we use, there are no existing non-zero infinitesimals, so 0.999... is equivalent to one, because the "difference" doesn't exist.
This idea is too counter intuitive for most students to accept, so the idea is ignored until higher level mathematics.
#90 - syophan (11/17/2012) [-]
This is simply correct, 0.999... is an alternative way of writing 1 ^^
User avatar #44 - allamericandude (11/17/2012) [-]
The reason people struggle with this is because it's hard for us to imagine infinities. We see "0.9999..." and we just assume that somewhere along that line there's a "0" to mark the end. But there isn't.
#39 - GeorgeBush (11/17/2012) [-]
This image has expired
This is true for any infinitely repeating real number integer, .25999... = .26, .43999... =.44

It's really not that hard
User avatar #138 - schmuxy (11/17/2012) [-]
Yes, 1 = 0.999999999999999999999999..... ad infinitum.

This is an established fact.
#116 - anonymous (11/17/2012) [-]
OP is correct, it's actually proven like this
0.999...=0.9x10^0+0.9x10^-1+0.9x10^-2+... where q is 1/10
sum of a infinite geometrical sequence:
first term/(1-q)
= 0.9/(1-(1/10))=1
#112 - lolollo (11/17/2012) [+] (2 replies)
Express answer to one significant figure.

Bam, **** you.
#8 - satanslore (11/16/2012) [+] (18 replies)
This is incorrect ,but i' gonna see if my math teacher can get it xD
#46 to #24 - anonymous (11/17/2012) [-]
You lost any and all support from me when you said "Ask your calculator"... That statement just made me grind my teeth. Ever see that picture where two calculators answer the same equation with a different answer?
The math in this equation is solid until 1/9 = 0.111(1). At which point, you just nod your head and agree, but it's incorrect.
Think of it like this: When you divide 1 by 3, what do you get? We've been trained to say "0.333(3 repeating)". But that's not correct. 0.333(3) * 3 = 0.999(9).
This means 1/3 =/= .333(3) but we still deem that the two are the same.
1/9 =/= 0.111(1) because 0.111(1) * 9 = 0.999(9) and 1/9 * 9 = 9. Just because your calculator ******* says so doesn't make it true.
User avatar #2 - kothaex ONLINE (11/16/2012) [+] (18 replies)
0.999*10 = 9.99
9.99 - 0.999 = 8.991
Idiot.
User avatar #73 to #2 - fackingvaiking (11/17/2012) [-]
you are being thumbed down for being right.
funnyjunk logic.
User avatar #114 - pepemex (11/17/2012) [-]
You just broke the universe
#56 - thechosentroll (11/17/2012) [+] (2 replies)
This image has expired
So, we're just going to ignore the fact that he divided by zero?
#43 - anonymous (11/17/2012) [-]
Yeah, they're just two different decimal representations of the same number. It's not a big deal.
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