Simplifying conditions for invertibility | Matrix transformations | Linear Algebra | Khan Academy - JJtheTutor

Showing that a transformation is invertible if and only if rref(A) is equal to the identity matrix Watch the next lesson: https://www.khanacademy.org/math/linear-algebra/matrix_transformations/inverse_transformations/v/linear-algebra-showing-that-inverses-are-linear?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra Missed the previous lesson? https://www.khanacademy.org/math/linear-algebra/matrix_transformations/inverse_transformations/v/linear-algebra-matrix-condition-for-one-to-one-trans?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra Linear Algebra on Khan Academy: Have you ever wondered what the difference is between speed and velocity? Ever try to visualize in four dimensions or six or seven?…