Question

I A I + I B I - I B I - I A I​

Answer 1

If A and B are variables, then,

Answer:

0

Step-by-step explanation:

The |  | sign indicates that the sing is ignored. So, only the sign outside is counted. A and -A cancels out, and B and -B cancels out. So you get 0

Answer 2

Answer:

answer is 0

because A-A+B-B=0