Categories Mathematics * is said to be commutative in A for all a,b ε A Post author By esimpk Post date June 16, 2021 No Comments on * is said to be commutative in A for all a,b ε A a + b = b + a a * b = b * a a – b = b – a a * b ≠ b * a ← (x+2)² = x² + 4x + 4 is → [ 0 0 0 ] is Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.