\left| \begin{array} { c c } { - 6 } & { - 2 } \\ { 7 } & { 6 } \end{array} \right|
Evaluate
-22
Factor
-22
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det(\left(\begin{matrix}-6&-2\\7&6\end{matrix}\right))
Find the determinant of the matrix.
-6\times 6-\left(-2\times 7\right)
For the 2\times 2 matrix \left(\begin{matrix}a&b\\c&d\end{matrix}\right), the determinant is ad-bc.
-36-\left(-2\times 7\right)
Multiply -6 times 6.
-36-\left(-14\right)
Multiply -2 times 7.
-22
Subtract -14 from -36.
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Limits
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