If `A=[[2,5,5],[2,4,5],[2,5,4]]` then find `A^(-1)`

If A=[[4, 5], [2, 5]] , then |2A^(-1)|=

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

If A=[[2,3,-4],[1,0,6],[-2,1,5]],B=[[5,1,2],[6,-1,4],[5,3,-4]] , find 2A-3B .

If A=[(1,-2),(-3,4)] , then find A^(2)+5A .

If A[{:(2,4,4),(2,5,4),(2,5,3):}] , then verify that A adjA = |A|l. Also find A^(-1) .

If A = [(5, -1, 4), (2, 3, 5), (5, -2, 6)] , find A^(-1) and use it to solve the following system of equation 5x - y + 4z = 5, 2x + 3y +5z = 2, 5x - 2y + 6z =-1

If A = [(5, -1, 4), (2, 3, 5), (5, -2, 6)] , find A^(-1) and use it to solve the following system of equation 5x - y + 4z = 5, 2x + 3y +5z = 2, 5x - 2y + 6z =-1

If A=[[3,-5-4,2]], find A^(2)-5A-14I

If A=[[3,-5-4,2]], find A^(2)-5A-14I

If A=[[1,3,5],[-2,5,7]] and 2A-3B=[[4,5,-9],[1,2,3]], find B