Which of the following statement('s) is/are TRUE? (A) Skew symmetric matrix of even order is always symmetric Choose the correct answer from the options given below: |
(A) and (D) only (C) and (D) only (B) and (D) only (A) and (C) only |
(C) and (D) only |
The correct answer is Option (2) → (C) and (D) only Consider the properties of a skew-symmetric matrix $A$: (i) $A^T = -A$ (A) Skew-symmetric matrix of even order is always symmetric → False, because $A^T = -A \neq A$ unless $A = 0$. (B) Skew-symmetric matrix of odd order is non-singular → False, determinant of skew-symmetric matrix of odd order is always 0, so it is singular. (C) Skew-symmetric matrix of odd order is singular → True. (D) Skew-symmetric matrix is always square → True, because transpose is defined only for square matrices in $A^T = -A$. |