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/sci/ - Science & Math

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2813919 No.2813919 [Reply] [Original]

1/9 = 0.111111...

9/1 X 1/9 = 1

9/1 x 0.111111... = 0.99999....

1 = 0.99999....


Where's your God now?

>> No.2813927

>>2813919
2=2
2+2=4
4/2=2
therefore
2=2

WHERE'S YOUR GOD NOW? THINGS THAT ARE EQUIVALENT ARE EQUIVALENT!

>> No.2813931

I don't know if this is trolling, reverse trolling, self trolling, or just not trolling at all.

>> No.2813934

HOLY SHIT I NEVER KNEW THIS BEFORE

>> No.2813941

OP = faggot

faggot 3==D men

OP 3==D men

OP is a faggot

>> No.2813944
File: 53 KB, 742x573, 1300553792483.png [View same] [iqdb] [saucenao] [google]
2813944

>>2813927

>> No.2813945

>9/1 x 0.111111... = 0.99999....

Not so obvious...you need a proper series theory.

>> No.2813965

>>2813944
the two sides are:

(-4+9/2)(5-9/2)=(4-9/2)(-5+9/2)

>> No.2813967

>>2813927
>>2813927

Well then explain my first post, Mr Einstein.

Oh wait? You can't? Probably because you just want to deny the truth.

>> No.2813971

>>2813919
so what your implying is that OP is a faggot?

>> No.2813977

>>2813967
your math is valid
but you've got a number on one side and a series on the other, essentially an internet version of zeno's paradox

>> No.2813974

>>2813967

0/10

>> No.2813973

>>2813944
That's a very good one.

>> No.2813989

>>2813967

You don't know what 0.99999.... is. That is your flaw in logic. 0.99999.... is 1.

>> No.2813991

>>2813977

What are you talking about? I have a number on both sides.

>> No.2813995

>>2813989

How is 0.99999... one, if it clearly says 0.999999?

>> No.2813998

>>2813995
read zeno's paradox. how does the arrow reach the target?

the same way .99999... reaches 1.

>> No.2814007

>>2813998

Zeno's Paradox looks complicated.

"If everything when it occupies an equal space is at rest, and if that which is in locomotion is always occupying such a space at any moment, the flying arrow is therefore motionless."

Seriously what the fuck?

>> No.2814012

>>2814007
> If everything when it occupies an equal space is at rest
That's where he's wrong.

>> No.2814018

>>2814012

I accidentally the whole sentence.

>> No.2814024

>>2814018
Accidentally what the whole sentence? I think you're missing a word there

>> No.2814030

>>2814024

Oh I was just messing around and I accidentally the whole sentence.

>> No.2814056

>>2813945
/thread

>> No.2814053

>>2814024
>not sure if troll or not
Yeah, so he did the sentence by an accidentally.

>> No.2814060

>>2814012
This is correct. Think about infinitesimals.

>> No.2814066

0.11111.. is an element of the real number set while 1/9 is element of the rational numbers. Rational numbers are densely inside the real numbers, therefore 1 is a rational approximation of 0.99999...

>> No.2814072

Lets denote 0.99999.... (infinite 9:s) with 0.9_9.

Now, let x = 0.9_9
then, 10x = 9.9_9 (we still have infinite 9:s)
Now consider 9x = 10x - x = 9.9_9 - 0.9_9 = 9
that is, 9x=9 and x = 1.
Thus, we have proved that 0.99999999999999999999999999999999.. = 1

>> No.2814074

>>2814072
Now consider HURR = DURR,

>> No.2814080

>>2814072
>9x = 10x - x
this comes out to 9x = 9x

pointless

>> No.2814085

0.9999... isn't even a real number. just by being an infinite number of 9s it is an approximation rather than an actual number... so you can't prove jack shit with it.

>> No.2814084

>>2814080
Well ofcourse it is. I thought you would understand that the whole line is equal, that is 9x = 9.

>> No.2814089

>>2814085

By your argument, pi is not a real number and therefore you cant prove shit whit it

>> No.2814092

>>2814084
Wrong. You can't reduce it to 9.

>> No.2814095

>>2814085
anon can not into infinite decimal expansion

>> No.2814098
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2814098

0.999... = x

x + 1 = 1.99999.....
(1 - x = 0.1111111111111) = c
(x - 0.999 = -0.111111111....) = b
b + c = 0

>> No.2814101

>>2814089
unknown ending =/ truly infinite

>> No.2814103

doesn't work

multiply .999... by any number other than 0, 1, or a multiple of 10

past that, I have put no research into .999...=1

>> No.2814107
File: 141 KB, 1290x1837, 1266707872088.png [View same] [iqdb] [saucenao] [google]
2814107

This thread. It's like we're back when /sci/ was brand spanking new.

>> No.2814108

>>2814101
Are you dense, trolling or simply uneducated? Pi is truly infinite. It's irrational.

>> No.2814110

>>2814084
Um, 9x would = 8.99_8, friendo.

>> No.2814131

>>2814107
not only the problem, but also the format,
OP is a lazy fucker