If `A=[[-1,2,5],[0,3,-1],[4,-7,2]]`, then `|A|=?`

3.If A= [[1,2,3],[2,3,4],[3,4,5]] , then 2A'-A=_ (A) [[1,2,3],[2,3,6],[3,3,7]] (B) [[-1,0,3],[4,5,6],[7,-8,1]] (C) [[1,5,3],[-2,4,0],[5,7,8]] (D)None of these

A= [[-2,5,7] , [0,3,2], [9,4,1]] Find A' and |A|

If A = [[2,3],[-1,5]] , B = [[3,-1],[4,7]] and C = [[5,-1],[0,3]], show that A(B +C)=AB+AC

If =[[2,3,4],[1,2,3],[4,-5,7]], B= [[2,5,-1],[3,-1,2],[7,2,-3]] , verify that (A+B)'=A'+B'

If A=[[1,4],[0,5],[6,7]] and B=[[2,3,-1],[1,0,-7]] , verify that (AB)\'=B\'A\'

If A=[[2,3,4],[-3,0,2]], B=[[3,-4,-5],[1,2,1]] and C=[[5,-1,2],[7,0,3]] , find the matrix X such that 2A+3B=X+C

If x+y=[[1,4,3] , [-2,5,6] , [7,0,2]] and x-y=[[3,2,5] , [4,1,2] , [1,0,4]] then find x and y

If {1/2(A-A'+1)}^-1=2/lambda[(lambda-13,-lambda/3,lambda/3),(-17,10,-1),(7,-11,5)] for A=[(-2,3,4),(5,-4,-3),(7,2,9)], then lambda is

If A=[[1,0,5],[3,2,7],[5,4,8]],B=[[3,1,2],[9,0,-6],[7,4,1]],C=[[2,0,-1],[7,5,6],[1,1,4]] , verify that A+(B+C)=(A+B)+C

If =[[2,3],[4,5]],B=[[3,4],[7,2]], C=[[1,0],[0,7]] then verify that (AB)C=A(BC)