How do you find the inverse of #A=##((1, 2), (1, 3))#? Precalculus Matrix Algebra Inverse Matrix 1 Answer Trevor Ryan. Apr 5, 2016 #=[(3,-2),(-1,1)]# Explanation: #A^(-1)=1/(det(A))*adj(a)# #=1/(1(3)-1(2))[(3,-2),(-1,1)]# #=[(3,-2),(-1,1)]# Answer link Related questions What is the multiplicative inverse of a matrix? How do I use an inverse matrix to solve a system of equations? How do I find an inverse matrix on a TI-84 Plus? How do I find the inverse of a #2xx2# matrix? How do I find the inverse of a #3xx3# matrix? How do I find an inverse matrix on an Nspire? What is the meaning of the phrase invertible matrix? The given matrix is invertible ? first row ( -1 0 0 ) second row ( 0 2 0 ) third row ( 0 0 1/3 ) How do you find the inverse of #A=##((2, 4, 1),(-1, 1, -1), (1, 4, 0))#? How do you find the inverse of #A=##((1, 1, 1, 0), (1, 1, 0, -1), (0, 1, 0, 1), (0, 1, 1, 0))#? See all questions in Inverse Matrix Impact of this question 1751 views around the world You can reuse this answer Creative Commons License