Answer
$\bf{True}$
Work Step by Step
The general form of a matrix of order $ 3 \times 3$ is:
$\begin{bmatrix} a & b & c \\ d & e & f \\ g & h& i \end{bmatrix}=a(ei-fh) -b(di-fg)+c(dh-eg)$
Now,$\begin{bmatrix} 1 & 2 & 4 \\ 4 & 2 & 1 \\ 4 & 6& 6 \end{bmatrix}= \begin{bmatrix} 1 & 2 & 4 \\ 4 & 2 & 1 \\ 2 & 3& 1 \end{bmatrix}+\begin{bmatrix} 1 & 2 & 4 \\ 4 & 2 & 1 \\ 2 & 3& 5 \end{bmatrix}$
or, $30=27+3$
or, $30=30$ (True)
