\left| \begin{array} { c c } { 8 } & { 6 } \\ { 5 } & { x } \end{array} \right|
Evaluate
8x-30
Integrate w.r.t. x
4x^{2}-30x+С
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det(\left(\begin{matrix}8&6\\5&x\end{matrix}\right))
Find the determinant of the matrix.
8x-6\times 5
For the 2\times 2 matrix \left(\begin{matrix}a&b\\c&d\end{matrix}\right), the determinant is ad-bc.
8x-30
Multiply 6 times 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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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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