Find negative of matrices A, B, C, D and E when

Question

Question:

Find negative of matrices A, B, C, D and E when:

A =$~~\left[ \begin{matrix} 1 \ 0 \ -1 \ \end{matrix} ight]$	B =$~\left[ \begin{matrix} 3 & -1 \ 2 & 1 \ \end{matrix} ight]$
C =$~\left[ \begin{matrix} 2 & 6 \ 3 & 2 \ \end{matrix} ight]$	D = $\left[ \begin{matrix} -3 & 2 \ -4 & 5 \ \end{matrix} ight]$
E = $\left[ \begin{matrix} 1 & -5 \ 2 & 3 \ \end{matrix} ight]$

Accepted Answer

Solution:

Negative of a matrix is obtained by inverting (changing) the signs of all its entries.

(i) $-~$A =$~~\left[ \begin{matrix} -1 \ 0 \ 1 \ \end{matrix} ight]$

(ii) $-$B =$~\left[ \begin{matrix} -3 & 1 \ -2 & -1 \ \end{matrix} ight]$

(iii) $-~$C =$~\left[ \begin{matrix} -2 & -6 \ -3 & -2 \ \end{matrix} ight]$

(iv) $-$D = $\left[ \begin{matrix} 3 & -2 \ 4 & -5 \ \end{matrix} ight]$

(v) $-$E = $\left[ \begin{matrix} -1 & 5 \ -2 & -3 \ \end{matrix} ight]$

A =$~~\left[ \begin{matrix} 1 \\ 0 \\ -1 \\ \end{matrix} \right]$	B =$~\left[ \begin{matrix} 3 & -1 \\ 2 & 1 \\ \end{matrix} \right]$
C =$~\left[ \begin{matrix} 2 & 6 \\ 3 & 2 \\ \end{matrix} \right]$	D = $\left[ \begin{matrix} -3 & 2 \\ -4 & 5 \\ \end{matrix} \right]$
E = $\left[ \begin{matrix} 1 & -5 \\ 2 & 3 \\ \end{matrix} \right]$