Question:
Without expanding the determinant, prove that $\left|\begin{array}{lll}41 & 1 & 5 \\ 79 & 7 & 9 \\ 29 & 5 & 3\end{array}\right|=0$.
SINGULAR MATRIX A square matrix A is said to be singular if $|A|=0$.
Also, A is called non singular if $|A| \neq 0$.
Solution: