Evaluate
\frac{100}{9}\approx 11.111111111
Factor
\frac{2 ^ {2} \cdot 5 ^ {2}}{3 ^ {2}} = 11\frac{1}{9} = 11.11111111111111
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\left(\frac{1}{5}-2^{-1}\right)^{-2}
Calculate 5 to the power of -1 and get \frac{1}{5}.
\left(\frac{1}{5}-\frac{1}{2}\right)^{-2}
Calculate 2 to the power of -1 and get \frac{1}{2}.
\left(-\frac{3}{10}\right)^{-2}
Subtract \frac{1}{2} from \frac{1}{5} to get -\frac{3}{10}.
\frac{100}{9}
Calculate -\frac{3}{10} to the power of -2 and get \frac{100}{9}.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}