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#1 2005-12-15 21:55:25
- simtom
- Member
- Registered: 2005-12-15
- Posts: 1
A + B = A?
Hey, check this out:
If A=B
let A = 3 and B = 3
B^2=AB
so A^2 - B^2 = A^2 - AB
(A+B)(A-B)=A(A-B)
A+B = A ??
...I know why this is wrong.. but I think it's pretty cool..
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#2 2005-12-15 22:13:46
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: A + B = A?
Yes, I've seen that one before. Doesn't stop it from being cool, though.
Here's why it doesn't work:
Why did the vector cross the road?
It wanted to be normal.
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#3 2005-12-15 22:51:28
- MathsIsFun
- Administrator
- Registered: 2005-01-21
- Posts: 7,713
Re: A + B = A?
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#4 2005-12-16 06:29:18
- mikau
- Member
- Registered: 2005-08-22
- Posts: 1,504
Re: A + B = A?
Disturbing.
A logarithm is just a misspelled algorithm.
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