\left| \begin{array} { c c } { 2 } & { - 3 } \\ { - 1 } & { 4 } \end{array} \right|
Evaluate
5
Factor
5
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det(\left(\begin{matrix}2&-3\\-1&4\end{matrix}\right))
Find the determinant of the matrix.
2\times 4-\left(-3\left(-1\right)\right)
For the 2\times 2 matrix \left(\begin{matrix}a&b\\c&d\end{matrix}\right), the determinant is ad-bc.
8-\left(-3\left(-1\right)\right)
Multiply 2 times 4.
8-3
Multiply -3 times -1.
5
Subtract 3 from 8.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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