" (iii) "[[1,3],[-1,2]]

Using elementary transformations find inverse of [[2,1,1],[3,-1,2],[1,2,-1]] .

If A=[[1, 2, 3], [2, -1, 3], [1, 2, 3]] , then

If A=[[2, 0, -1], [3, 1, 2], [-1, 1, 2]] , then adjA=

If A = [(2,2,1), (1,3,1), (1,2,2)] then A^-1+(A-5I) (AI)^2 = (i) 1/ 5 [[4,2, -1], [-1,3,1], [-1,2,4]] (ii) 1/5 [[4, -2, -1], [-1, 3, -1], [-1, -2,4]] (iii) 1/3 [[4,2, -1], [-1,3,1], [-1,2,4]] (iv) 1/3 [[4, -2, -1], [-1,3, -1], [-1, -2,4]]

Check whether the following matrix is invertible or not. [[1,2,3],[2,-1,3],[1,2,3]]

Find the inverse of A=[[2,1,1],[3,2,1],[2,1,2]] by Gauss - Jordan method.

Plot the following points and check whether they are collinear or not (i) (1,3), (-1,-1), (-2,-3) " " (ii) (1,1), (2,-3), (-1,-2) (iii) (0,0),(2,2), (5,5)

If A=[[1, 3, 2], [3, 1, 2], [1, 2, 3]] , then