The Desert Colossus

Community => General Discussion => Topic started by: Keaton on May 07, 2010, 10:51:16 PM

Title: Just so you know...
Post by: Keaton on May 07, 2010, 10:51:16 PM
Everything you ever learned in math was a lie.

Given:  a = b

a2 = ab
a2-b2 = ab-b2
(a+b)(a-b) = b(a-b)
(a+b) = b
a+a = a
2a = a
2=1

Bam.
Title: Re: Just so you know...
Post by: Pea-Tear Griffin on May 07, 2010, 10:53:43 PM
Very nice, I see what you did there
Title: Re: Just so you know...
Post by: Keaton on May 07, 2010, 10:58:39 PM
Extra points to anyone but mags who can tell me, without looking it up, where this equation is mathematically flawed.
Title: Re: Just so you know...
Post by: Pyrgusfinn on May 07, 2010, 11:38:55 PM
it isn't...

I could be wrong.
Title: Re: Just so you know...
Post by: DW on May 08, 2010, 12:23:24 AM
Well, if a and b are equal, then a minus b would be zero, which, when you get into the multiplication and division, kind of makes the entire thing invalid.
Title: Re: Just so you know...
Post by: Pea-Tear Griffin on May 08, 2010, 12:43:52 AM
Yup yup equation 4 blows the whole thing... Fun way to make people learn about dividing by zero though XD
Title: Re: Just so you know...
Post by: Keaton on May 08, 2010, 02:07:31 AM
Quote from: Kixash on May 08, 2010, 12:23:24 AM
Well, if a and b are equal, then a minus b would be zero, which, when you get into the multiplication and division, kind of makes the entire thing invalid.

bingo bango

Stay in school, kids.
Title: Re: Just so you know...
Post by: Pyrgusfinn on May 08, 2010, 05:51:32 PM
Dang.  Yeah. That was my second guess.
Title: Re: Just so you know...
Post by: Gamefreak on May 09, 2010, 10:02:46 AM
Quote from: Lady Gaga on May 07, 2010, 10:51:16 PM
Everything you ever learned in math was a lie.

Given:  a = b

a2 = ab
a2-b2 = ab-b2
(a+b)(a-b) = b(a-b)
(a+b) = b
a+a = a
2a = a
2=1

Bam.

Nothing is true.
Everything is permitted.
Title: Re: Just so you know...
Post by: MagmarFire on May 10, 2010, 11:59:41 AM
Must...avoid...demonstrate the finding of the x-intercept of a line using the Quadratic Formula...! :P
Title: Re: Just so you know...
Post by: Keaton on May 10, 2010, 05:24:40 PM
Quote from: MagmarFire on May 10, 2010, 11:59:41 AM
Must...avoid...demonstrate the finding of the x-intercept of a line using the Quadratic Formula...! :P

Please, demonstrate.
Title: Re: Just so you know...
Post by: MagmarFire on May 10, 2010, 08:29:24 PM
Well, if you're going to twist my arm...

y = 2x + 1
x = (-2 +- ( 4 - 4(0)1 )^.5 ) / (2(0))
2x0 = -2 +- ( 4 - 4(0) )^.5
2x0 + 2 = +- ( 4 - 4(0) )^.5
4x^2 * 0^2 + 8x0 + 4 = +- 4 - 4(0)
4x^2 * 0^2 + 8x0 = -4(0)
4x^2 * 0 + 8x = -4
8x = -4
x = -1/2
[]

...Hey, as long as Xion is with Riku, I don't care. ^w^