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

question 258

Multiple Choice

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) \(\frac { 7 } { 30 }\).

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