What matrix in ℝ2 serves the role of 0 in the real number system? what is that role?

What matrix in ℝ2 serves the role of 0 in the real number system?

What is that role?

The role is additive identity.

Step-by-step explanation:

In the real number system, you can add any number to 0 and the answer is still the same number.

In ℝ2, you can add any matrix (same size) to and the answer is still the same matrix.

This role is called "additive identity".

i got 10.28 but that rounds up to 10.3