Find the determinant of the matrix $$\left[ \begin{array} { c }
- \frac { 1 } { 6 } - \frac { 1 } { 6 } \\
- 1 - \frac { 2 } { 5 }
\end{array} \right]$$ .
A) $- \frac { 1 } { 8 }$
B) $\frac { 7 } { 30 }$
C) $- \frac { 1 } { 10 }$
D) $- \frac { 1 } { 12 }$
E) $\frac { 7 } { 30 }$.

Question

​Find the determinant of the matrix $$\left[ \begin{array} { c } 
- \frac { 1 } { 6 } - \frac { 1 } { 6 } \\
- 1 - \frac { 2 } { 5 }
\end{array} \right]$$ . ​
A)​ $- \frac { 1 } { 8 }$
B)​ $\frac { 7 } { 30 }$
C)​ $- \frac { 1 } { 10 }$
D)​ $- \frac { 1 } { 12 }$
E)​ $\frac { 7 } { 30 }$.

Quizplus · Accepted Answer

The Answer of ​Find the determinant of the matrix $$\left[ \begin{array} { c } 
- \frac { 1 } { 6 } - \frac { 1 } { 6 } \\
- 1 - \frac { 2 } { 5 }
\end{array} \right]$$ . ​
A)​ $- \frac { 1 } { 8 }$
B)​ $\frac { 7 } { 30 }$
C)​ $- \frac { 1 } { 10 }$
D)​ $- \frac { 1 } { 12 }$
E)​ $\frac { 7 } { 30 }$.

​Find the Determinant of the Matrix [−16−16−1−25]\left[ \begin{array} { c } - \frac { 1 } { 6 } - \frac { 1 } { 6 } \\\\- 1 - \frac { 2 } { 5 }\end{array} \right]​−61​−61​−1−52​​​

Find the Determinant of the Matrix $\left[ \begin{array} { c } - \frac { 1 } { 6 } - \frac { 1 } { 6 } \\\\- 1 - \frac { 2 } { 5 }\end{array} \right]$