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Inverse of a 3x3 Matrix

This precalculus video tutorial explains how to find the inverse of a 3x3 matrix. You need to write an augmented matrix containing the original matrix and the multiplicative identity matrix. You need to convert the original matrix into the multiplicative identity matrix using elementary row operations. The multiplicative identity matrix will change into the inverse of the original matrix as long as you apply the same elementary row operations to it. Matrices - Free Formula Sheet: https://www.video-tutor.net/precalcul... Matrices - More Video Lessons: https://www.video-tutor.net/matrix.html Final Exam and Test Prep Videos: https://bit.ly/41WNmI9 Algebra Review:    • Algebra 2 Introduction, Basic Review, Fact...