The inverse of a symmetric matrix is
symmetric
skew symmetric
diagonal matrix
none of these
If A is a square matrix, then
AA' is symmetric
AA' is skew symmetric
A'A is skew symmetric
None of these
, then An =
Which of the following is correct?
B'AB is symmetric, if A is symmetric
B'AB is skew-symmetric if A is symmetric
B'AB is symmetric if A is skew symmetric
All the above
The matrix A is such that A2 - 2A - I , where I is unit matrix then for n ≥ 2, An =
nA - ( n -1 ) I
nA - I
2n -1 - A - ( n - 1 ) I
2n -1 A - 1
