If `A=[{:(2,-4),(-5,3):}]` , then find A+A' and AA'.

IF A=[{:(2,-4),(-5,3):}] the find A+A' and AA'.

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

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

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

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

From the symmetric matrix A=[(2,x,4),(5,3,8),(4,y,9)] , verify AA' and A+A' are symmetric matrices.

If A=[[2,-3,4],[-1,0,3],[4,-5,-5]] then find A'

For the matrix A=[{:(2,1),(3,0):}] , find the numbers 'a' and 'b' such that A^(2)+aA+bI=O . Hence , find A^(-1) .