\left| \begin{array} { l l } { 2 } & { 3 } \\ { 7 } & { 4 } \end{array} \right|
Evaluate
-13
Factor
-13
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det(\left(\begin{matrix}2&3\\7&4\end{matrix}\right))
Find the determinant of the matrix.
2\times 4-3\times 7
For the 2\times 2 matrix \left(\begin{matrix}a&b\\c&d\end{matrix}\right), the determinant is ad-bc.
8-3\times 7
Multiply 2 times 4.
8-21
Multiply 3 times 7.
-13
Subtract 21 from 8.
Examples
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Integration
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Limits
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