Find the determinant of the matrix $\left[ \begin{array} { r r } - \frac { 1 } { 6 } & - \frac { 1 } { 2 } \ - 1 & - \frac { 4 } { 5 } \end{array} \right]$.
A) $- \frac { 7 } { 30 }$
B) $\frac { 19 } { 30 }$
C) $\frac { 1 } { 24 }$
D) $- \frac { 11 } { 30 }$
E) $\frac { 7 } { 24 }$

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The Answer of Find the determinant of the matrix $\left[ \begin{array} { r r } - \frac { 1 } { 6 } & - \frac { 1 } { 2 } \ - 1 & - \frac { 4 } { 5 } \end{array} \right]$.
A) $- \frac { 7 } { 30 }$
B) $\frac { 19 } { 30 }$
C) $\frac { 1 } { 24 }$
D) $- \frac { 11 } { 30 }$
E) $\frac { 7 } { 24 }$

Find the Determinant of the Matrix [−16−12−1−45]\left[ \begin{array} { r r } - \frac { 1 } { 6 } & - \frac { 1 } { 2 } \\ - 1 & - \frac { 4 } { 5 } \end{array} \right][−61​−1​−21​−54​​]

Find the Determinant of the Matrix $\left[ \begin{array} { r r } - \frac { 1 } { 6 } & - \frac { 1 } { 2 } \\ - 1 & - \frac { 4 } { 5 } \end{array} \right]$