How do you find the determinant of #|(9,12), (12,16)|#? Precalculus Matrix Algebra Determinant of a Square Matrix 1 Answer sjc Jan 2, 2017 0 Explanation: #|(9,12), (12,16)|#is evaluated by the following rule; #|(a,b), (c,d)|=ad-bc# #:.|(9,12), (12,16)|=9xx16-12xx12# #=144-144=0# Answer link Related questions What is the determinant of an inverse matrix? What is the determinant of a matrix used for? What is the determinant of a matrix to a power? What is meant by the determinant of a matrix? How do I find the determinant of a #2xx2# matrix? How do I find the determinant of a #3xx3# matrix? How do I find the determinant of of a #4xx4# matrix? How do I find the determinant of of a #5xx5# matrix? Does every matrix have a determinant? What is the cofactor expansion method to finding the determinant? See all questions in Determinant of a Square Matrix Impact of this question 1620 views around the world You can reuse this answer Creative Commons License