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# This proves my A-Level Maths teacher was wrong!!!!!

Proof that 1 = 2

(for those that don't know, the little "^" means to the power of, as in 2^2, 2 squared)

If a=1 and b=1 then...

a^2 - b^2 = 0

and

a^2 - ab = 0

...therefore...

a^2 - ab = a^2 - b^2

...and by factorising...

a(a-b) = (a+b)(a-b)

...and then dividing by (a-b)...

a = a+b

...therefore...

1=2

Done.

AS YOUR MATH TEACHER WOULD SAY FAIL FAIL FAIL

- SpecialK

(for those that don't know, the little "^" means to the power of, as in 2^2, 2 squared)

If a=1 and b=1 then...

a^2 - b^2 = 0

and

a^2 - ab = 0

...therefore...

a^2 - ab = a^2 - b^2

...and by factorising...

a(a-b) = (a+b)(a-b)

...and then dividing by (a-b)...

a = a+b

...therefore...

1=2

Done.

AS YOUR MATH TEACHER WOULD SAY FAIL FAIL FAIL

- SpecialK

[SIZE="1"]Not![/SIZE]

Doesn't that equal 1?

Not sure if this is a joke or supposed to be true???

Original Poster

follow the math, it's infallible

Original Poster

Doesn't that equal 1?[quote]

sorry, i left out some minus signs. :oops:

let me fix it.

Edit: Fixed now, sorry! :oops:

Original Poster

yeah, sorry about that.:oops:

but it's right now :thumbsup:

WRONG!

You can't divide something by zero, I looked it up!

its a - a = b

then b=0 which is not 1!

you have to finish solving the equation, not directly substitute it with your assumption that a=1 and b=1

The fun I used to have trying to prove to people that x/0 = I keep the remainder ;-)

[CENTER]a^2 - ab = a^2 - b^2 [/CENTER]you are proving that 0 = 0.

From that point you can do almost any damn thing!

Looks cool, though.

a^2 - b^2 resolves to zero

and

a^2 - ab resolves to zero

does not mean that

a^2 - b^2 equals a^2 - ab

It's like saying

ab = 0

and

ac = 0

therefore

b = c

No, because a could equal 0

either a=1 and b=-1 or vice versa

then it works.:whistling:

For example, NASA released some figures regarding a shuttles engine claiming it did this that and the other, and someone one on a blog saw it all and was like WRANG and corrected it all.

brillinat