[[3,-1],[-4,2]]

A=[[1,2,3],[3,-2,1],[4,2,1]] A^-1

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]]

Find products : [[1,3],[1,4]][[1,2],[3,4]]

The centroid of the tetrahedron whose vertices are (4,1,-2), (-3,3,-4),(-3,2,1),(4,2,3)

Find |A|: A = {:[(2,1,5),(3,-2,-4),(-3,1,-2)]

If A=[(2,-2,-4),(-1,3,4),(1,-2,-3)] then A is

If A=[1 2 3-1] and =[1-4 3-2] , find |A B| .

The matrix A = [{:(2 , -2, -4),(- 1, 3, 4),(1 , - 2, -3):}] is

(1/2)^-2+(1/3)^-2+(1/4)^-2 =___