If `A=1/9[[-8,1,4],[4,4,7],[1,-8,4]],` show that `A^-1=A'.`

If A=[[ 1 ,4 , 7 ] , [2 , 5 , 8 ]] and B=[[-3, 4 , 0 ],[ 4 ,-2 , -1 ]] then show that ( A + B )^T = A^T + B^T

If A=[{:(4,5),(1,8):}] , show that (A+A') is symmetric.

If A=[[3,9,0],[1,8,-2]] and B=[[4,0,2],[7,1,4]] ,find A+B and A-B .

If A=[(1,4,4),(4,1,4),(4,4,1)] and A^(-1) exists and not equal to zero ,then (A^(2)-8A)A^(-1) =

If A={1,2,3,4,5,6,7,8} and B={1,3,5,6,7,8,9}, then A-B={2,4},B-A={9}

If U = {1,2,3,4,5,6,7,8,9} and A = {1,2,3,4} , then (A^(c))^(c) = ……….. .

The co-factor of -4 and 9 in [[-1, -2, 3], [-4, -5, -6], [-7, 8, 9]] are respectively.

Find the rank of the matrix A=[[9,7,3,6],[5,-1,4,1],[6,8,2,4]]

If [(x),(y),(z)]=(1)/(17) [(1,5,1),(8,6,-9),(10,-1,-7)][(8),(1),(4)] then the value of xyz is

If A={1,4, 7,8}, B={4,6,8,9} and C={3,4,5, 7} be three subsets of a universal set U ={1,2, 3, 4,5, 6, 7,8, 9} . Then, A uu (Bnn C') is equal to