Question

A square matrix A is called idempotent if ____________.

Options

• `"A"^2 = "O"`

• `"A"^2 = "I"`

• `2"A = I"`

• `"A"^2 = "A"`

Answer 1

A square matrix A is called idempotent if `underline("A"^2 = "A")`.

Explanation:

The matrix is called Idempotent if the product of any square matrix with itself is the matrix itself.