Evaluate
\frac{19}{405}\approx 0.04691358
Factor
\frac{19}{5 \cdot 3 ^ {4}} = 0.04691358024691358
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\frac{3.8}{81}
Divide \frac{1}{81} by \frac{1}{3.8} by multiplying \frac{1}{81} by the reciprocal of \frac{1}{3.8}.
\frac{38}{810}
Expand \frac{3.8}{81} by multiplying both numerator and the denominator by 10.
\frac{19}{405}
Reduce the fraction \frac{38}{810} to lowest terms by extracting and canceling out 2.
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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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.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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