If `A^(-1) = ((3,1),(-1,2))`,find A.

If A^(-1) = ((3,1),(-1,2)) , find the matrix A.

If A = ((3,-1),(1,2)), B = ((3),(1)), C = ((1),(-2)) find the matric X such that AX = 3B + 2C.

If A'=[(-2,3),(1,3)] and B=[(-1,0),(1,2)], find [A+2B]'.

If A'=[(-2,3),(1,3)] and B=[(-1,0),(1,2)], find [A+2B]'.

If A=[(1,2,3),(2,3,1)] and B=[(3,-1,3),(-1,0,2)], then find 2A-B.

If A = {:[(1,2,3),(2,3,1)] and B = [(3,-1,3),(-1,0,2)] , then find 2A + B.

If A{:[(1,2,3,5,6),(4,-1,2,-3,1)]:}andB={:[(5,3),(2,1),(-3,5),(4,1),(1,2)]:} , then find AB and BA.

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=[(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=[(2, 3),( 5 ,7)] , B=[(-1 ,0, 2),( 3, 4, 1)] , C=[(-1, 2 ,3),( 2 ,1, 0)] , find A+B and B+C (ii) 2B+3A and 3C-4B .