If `A=[(1,-2,3),(4,5,-1),(5,0,2)]` find `3A`

If A^(-1) =[(3,-1,1),(-15,6,-5),(5,-2,2)] and B = [(1,2,-2), (-1,3,0), (0,-2,1)] find (AB)^(-1)

If A=[[1,-2,3],[0, 2 ,-1],[ -4,5-,2]] , find A (adj A) .

If [(2,-1),(1,0),(-3,4)]A=[(-1,-8,-10),(1,-2,-5),(9,22,15)] , find A.

If A=[(1,-2,3),(-4,2,5)] and B=[(2,3),(4,5),(2,1)] , find AB and BA and show that AB!=BA

If A= [(3,1),(4,0)], B= [(1,-2),(2,3)] and 3A- 5B + 2X= [(4,3),(0,1)] , find the matrix X.

If A=[(2, 0, 1 ),(2, 1, 3),( 1,-1, 0)] , find A^2-5A+4I and hence find a matrix X such that A^2-5A+4I+X=O .

If A = |{:(1,1,-2),(2,1,-3),(5,4,-9):}| , find |A|.

Let A+2B=[(1,2,0),(6,-3,3),(-5,3,1)] and 2A-B=[(2,-1,5),(2,-1,6),(0,1,2)], then find tr(A)-tr(B).

find the adjoint of the matrix A=[(1,2,3),(0,5,0),(2,4,3)]

If A=|{:(1,0,0),(0,1,0),(0,0,1):}|" and A"=[{:(0,-3,4),(1,2,3),(0,5,5):}]," then find "(I-A)^(-1)