Find the inverse of A = `[[1,2,3],[4,5,6],[6,7,8]]`

Using elementary row transformations, find the inverse of the matrix A=[[1,2,3],[2,5,7],[-2,-4,-5]]

Find the rank of the matrix [[1,2,3,0],[2,4,3,2],[3,2,1,3],[6,8,7,5]]

Without expanding proof that |[1,2,3],[4,5,6],[7,8,9]| =0

If the sets A and B are given by A = {1, 2, 3, 4} B = {2, 4, 6, 8, 10} and the universal set U = {1,2,3,4,5,6,7,8,9,10} then

Find the matrix X so that X[[1 ,2 ,3], [4, 5 ,6]]=[[-7,-8,-9],[2,4,6]]

Find the matrix X so that X[[1, 2, 3],[ 4 ,5, 6]] = [[-7,-8,-9],[2,4,6]]

Find the matrix X so that X[[1, 2, 3],[ 4 ,5, 6]] = [[-7,-8,-9],[2,4,6]]

Find the rank of matrix A = [(4,5,-6,1),(7,-3,0,8)] .

(x) find the value of the determinant |[1,2,5],[2,4,6],[3,6,7]|

Find the average of 4.2, 3.8 and 7.6.