# Homework Help: Finding the factor by which two operators differ.

1. Nov 27, 2012

### H.fulls

1. The problem statement, all variables and given/known data
I have two operators
A^2B^2+B^2A^2

1/2(A^B^+B^A^) 2

By what factor do the two operators differ?

3. The attempt at a solution
I believe I either have to find the inner products of them and relate them somehow or use commutation?
Not sure which one!
I dont want help with the maths as I really need to try figure that bit out myself! But im not quite sure what the question is asking me to do.

2. Nov 27, 2012

### Basic_Physics

Shouldn't the question read "By what factor do the two operations differ"?
That is the result of the two operations differ by only a factor, or one answer is a factor of the other.

3. Nov 27, 2012

### H.fulls

Thats not how the question is worded :/ Would maybe make more sense like that...But it definately says by what factor do the two operators given differ.

4. Nov 28, 2012

### Basic_Physics

That doesn't make sense. Operators are defined a certain way and give variable results when operating on the operands. So I would think they intended to write 'operations'. If that is what they realy intended why would they give two equations then?