2-2

0

If you meant the simple arithmetic: 2 − 2 = 0. This follows the rule that subtracting a number from itself gives zero.

If you meant Exercise 2-2 from a textbook or a different context (e.g., modular arithmetic, vector subtraction, etc.), please paste the full problem or share the chapter/topic and I’ll walk you through it. Want a quick practice set of similar problems? I can generate a few.