# Translations help

• March 9th 2009, 10:00 PM
jzellt
Translations help
If A sub a = A sub b, then a=b. Hint: Apply translations to zero.

Sorry...A sub a is defined as a function Z ---> Z bu the rule x ---> x+a
• March 9th 2009, 10:16 PM
Jhevon
Quote:

Originally Posted by jzellt
Sorry...A sub a is defined as a function Z ---> Z bu the rule x ---> x+a

...that was a very important piece of info, don't you think?

assume $A_a(x) = A_b(x)$, then it means $x + a = x + b$. now what?