" voulfy that "A^(2)=I" when "A=[[5,-4],[6,-5]]

Verify that A^(2)=I when A=((5, -4), (6, -5))

Verify that A^(2) = I when A= ((5,-4),(6,-5))

Show that A+A^(T) is symmetric when A=[(2,4),(5,6)] .

Show that A+A' is symmetric when A=[(2,4),(5,6)] .

Verify that : A-A' is Skew - symmetric Matrix when : (i) A=[(1,5),(6,7)] (ii) A=[(2,5),(4,1)] (iii) A=[(6,2),(4,5)] where A' is the tranpose of A.

Show that A + A' is symmetric when A = {:[(2,4),(5,6)] .

Prove that the value of the determinant |[-7, 5+3i,2/3-4i], [5-3i,8, 4+5i], [2/3+4i,4-5i,9]| is real.

If A = [[4,5],[5,6]] , show that A^2 = 10A + I where I is the unit matrix of order 2.

Find A^2-5A+6I if A=[(2,5,8),(6,0,5),(0,-2,0)]

If the mean of the following data is 5.5, then x = {:(x_(i),2,4,6,8),(f_(i)"",3,5,6,x):}