4.If `[[5,4],[1,1]]X=[[1,-2],[1,3]]`, then X is equal to

Let X= [[x],[y],[z]] ,D= [[3],[5],[11]] and A=[[1,-1,-2],[2,1,1],[4,-1,-2]] , if X=A^-1D , then X is equal to

Let X=[(x),(y),(z)] D=[(3),(5),(11 )] and A=[(1,-1,-2),(4,1,1),(4,-1,-2)] , if X=A^(-1)D , then X is equal to

Let f(x)=[(x,-4,5),(1,1,-2),(2,x,1)] then f(5) is equal to

If | [ 3 , x ], [ x , 1 ] | = | [ 3 , 2 ] , [ 4 , 1 ] | , then x is equal to :

" If the trace of the matrix: "A=[[-1,0,2,5],[3,x^(2)-2,4,1],[-1,-2,x-3,1],[2,0,4,x^(2)-6]]" is "0" then "x" is equal to "

If [(1,2,-3),(0,4,5),(0,0,1)][(x),(y),(z)]=[(1),(1),(1)] , then (x, y, z) is equal to

If ((3)/(5))^(2x)=1 , then x is equal to-

Let X=[{:(x_(1)),(x_(2)),(x_(3)):}],A=[{:(1,-1,2),(2,0,1),(3,2,1):}] and B=[{:(3),(1),(4):}] .If AX=B, then X is equal to

If the trace of the matrix A= [{:( x-1 ,0,2,5),( 3, x^(2) - 2 ,4,1),( -1,-2,x-3,1),(2,0,4,x^(2)-6) :}] is 0 then x is equal to