Find the trace of A, if `A = [(1,2,-1//2),(0,-1, 2),(-1//2,2,1)]`

Find the trace of [(1,3,-5),(2,-1,5),(2,0,1)]

Find the trace of [(1,3,-5),(2,-1,5),(2,0,1)] .

Find the trace of [{:(1,3,-5),(2,-1,5),(1,0,1):}]

4.Find the rank of the matrix A = [[4,2,-1,2],[1,-1,2,1],[2,2,-2,0]]

Find the rank of matrix A= [[1,2,-1,0],[0,1,3,1],[2,5,1,2]]

Find the product of [(2,1),(3,2),(-1,1)][(1,0,1),(-1,2,1)]

Find the matrix A if [(1,2),(0,1)]A=[(6,1),(2,1)]

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