Find $ \frac{1}{2}(A + A')$ and $\frac{1}{2}(A - A')$ , when $ A = \begin{bmatrix} 0 & a & b \\ -a & 0 & c \\ -b & -c & 0 \end{bmatrix} $

Question

$\begin{array}{1 1} I and \begin{bmatrix}0 & a & b \\ -a & 0 & c \\ 0 &-c& 0 \end{bmatrix} \\ \begin{bmatrix} 0 & 0 & 0 \\ 0 & 0 & 0 \\ 0 & 0 & 0 \end{bmatrix} and \begin{bmatrix}0 & a & b \\ -a & 0 & c \\ 0 &-c& 0 \end{bmatrix} \\ \begin{bmatrix} 0 & 0 & 0 \\ 0 & 0 & 0 \\ 1 & 1 & 1 \end{bmatrix} and \begin{bmatrix}0 & a & b \\ -a & 0 & c \\ 0 &-c& 0 \end{bmatrix} \\ \begin{bmatrix} 0 & 0 & 0 \\ 0 & 0 & 0 \\ 0 & 0 & 0 \end{bmatrix} and \begin{bmatrix}0 & a & a \\ -a & 0 & c \\ 0 &-c& 0 \end{bmatrix}\end{array} $