OK I love this geek shit
let x=1
x^2=1*1
x^2=1
x^2=x
x^2-1=x-1
(x-1)(x+1)=(x-1)
Now cancel both (x-1)'s
x+1=1
1+1=1
2=1
Oh such a contradiction.
We went to math night last night at school. I put this on the whiteboard. It's one of my favorite math puzzles. What line above breaks a simple rule of algebra?
x^2=1*1
x^2=1
x^2=x
x^2-1=x-1
(x-1)(x+1)=(x-1)
Now cancel both (x-1)'s
x+1=1
1+1=1
2=1
Oh such a contradiction.
We went to math night last night at school. I put this on the whiteboard. It's one of my favorite math puzzles. What line above breaks a simple rule of algebra?
posted by J.R. at 7:04 AM
2 Comments:
The cancel line. You can't divide by 0, since x=1. This was in my 6th grade prealg textbook, but using a=s instead. I didn't figure it out until 1/2 into 7th grade. Tough shit man, tough shit.
I can easily see why this is your favorite puzzle. . . not!
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