answersLogoWhite

0


Best Answer

A - B = B - A

This statement is very difficult to prove.

Mainly because it's not true . . . unless 'A' happens to equal 'B'.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

14y ago

You cannot prove it since it is axiomatic. You can get consistent theories (matrix algebra, for example) where ab is not ba.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you prove ab equals ba?
Write your answer...
Submit
Still have questions?
magnify glass
imp