Does 2.9999999~9 = 3

[lobadobadingdong]

Originally posted by: Captain_Howdy

Originally posted by: ActuaryTm
It's now official.

LOL, awesome.

I like that beating the dead horse bit. :laugh:

 

[Howard]

What's so hard about accepting the fact that x.9... = x + 1?

Here's a proof that's slightly more formal (middle of the page): http://mathforum.org/dr.math/faq/faq.0.9999.html

 

[MrDudeMan]

Originally posted by: Howard
What's so hard about accepting the fact that x.9... = x + 1?

Here's a proof that's slightly more formal (middle of the page): http://mathforum.org/dr.math/faq/faq.0.9999.html

there it is. thats the calculus proof i was looking for.

 

[Engineer]

Depends.

The IRS says it does! 😀

(and then some! 😉 )

 

[CrazyCoolDealz]

Only on the first Tuesday of every other month.

Besides those days its 2

 

[spidey07]

Originally posted by: 91TTZ
I'm not going to waste my time with this. I could be posting all weekend and still not come to an agreement.

Very true. There are still uneducated people in the world.

go figure.

 

[Schadenfroh]

MIKE

i like cheese

nef

OMGWTFBBQ

another one of these threads

 

[Tom]

there isn't any such number as 2.999....

so it's meaningless.

 

[JustAnAverageGuy]

Originally posted by: spidey07
alright, you're on. show me 2+2=7

Very well, using only algebra 😛

I multiply both sides by 0, which is perfectly acceptable as long as it it done to both sides of the equation.

0*(2+2)=(7)*0
distributed
(2*0) + (2*0) = (7*0)
0+0=0
0=0

0=0, therefore the equation is balanced, and thus 2+2=7

Oh, and yes .999.... = 1

 

[aeroguy]

I'm not going to read all the posts, but yes, 2.99999~9 = 3

Let's say x = 2.9999999~9
then 10x = 29.9999999~9

subtract the first line from the second:

10x - x = 29.99999~9 - 2.99999~9

so

9x = 27

and

x = 3

 

[aeroguy]

Oh, here's my proof that 2 = 1

Lets say that a = b
add 'a' to both sides
2a = a + b
subtract '2b' from both sides
2a - 2b = a - b
factor out the 2
2(a-b) = (a-b)
divide both sides by (a-b) and we get
2=1

Why does this work? Answer below...







I divided by (a-b), and (a-b) is zero. Dividing by zero is fun, but not math legal.

 

[spidey07]

Originally posted by: aeroguy
Oh, here's my proof that 2 = 1

Lets say that a = b
add 'a' to both sides
2a = a + b
subtract '2b' from both sides
2a - 2b = a - b
factor out the 2
2(a-b) = (a-b)
divide both sides by (a-b) and we get
2=1

Why does this work? Answer below...







I divided by (a-b), and (a-b) is zero. Dividing by zero is fun, but not math legal.

sure dividing by zero is math legal. Its just undefined.

 

[bluewall21]

Originally posted by: spidey07

Originally posted by: aeroguy
Oh, here's my proof that 2 = 1

Lets say that a = b
add 'a' to both sides
2a = a + b
subtract '2b' from both sides
2a - 2b = a - b
factor out the 2
2(a-b) = (a-b)
divide both sides by (a-b) and we get
2=1

Why does this work? Answer below...







I divided by (a-b), and (a-b) is zero. Dividing by zero is fun, but not math legal.

sure dividing by zero is math legal. Its just undefined.

Yeah, because if it was, 2=1=0.9999.... 🙂

 

[Yax]

Hmm, I wonder if this thread will be as long as the original one a while back.

We'll see. Maybe if it gets infinitely long, we'd find out the answer.

 

[Pr0d1gy]

Originally posted by: sharkeeper
some folk say it do!

only if it's an AMD we're talking about...lol

 

[91TTZ]

Originally posted by: virtualgames0


Can't believe people are still arguing this. You really are dumb. Just stop posting. Anyone with half a brain would understand the logic that .9999... = 1.

Your reply seems a bit dramatic and angry for a thread about math.

 

[91TTZ]

.9999... = 1

I now agree.

All the little teenage kiddies that got worked up about this can now sleep peacefully.