Question

difine.
identity matrix​

Answer 1

Answer:

An identity matrix with a dimension of 2×2 is a matrix with zeros everywhere but with 1's in the diagonal. It looks like this. It is important to know how a matrix and its inverse are related by the result of their product.

Answer 2

Answer:

In linear algebra, the identity matrix of size n is the n × n square matrix with ones on the main diagonal and zeros elsewhere. It is denoted by Iₙ, or simply by I if the size is immaterial or can be trivially determined by the context.

Step-by-step explanation:

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