Question

Let ( M,+) where M be the set of 2×2 matrices with elements as any real numbers and the operation + on set M is usual addition of matrices is an abelian group​

Answer 1

Answer:

at first you understand the abelian group property. abelian property related to commutative property

Answer 2

closure property

associative property

identify element property

inverse property

commutative property

all satisfied

hence abelian group