Which of the following the statements are true:
I. If A and B are two matrices of order n, then (A + B)2 = A2 + 2 AB + B2 .
II. If A and B are two matrices of order n and AB = BA, then (AB)n = An Bn.
III. If A and B are symmetric matrices of order n, then the matrix C = A × B × A is also a symmetric matrix.
1
Only I and II
2
Only II and III
3
Only I and III
4
None of these
5
Question Not Attempted