Evaluate
\frac{5}{9}\approx 0.555555556
Factor
\frac{5}{3 ^ {2}} = 0.5555555555555556
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\frac{5\times 11}{9\times 16}+\frac{5}{9}\times \frac{5}{16}
Multiply \frac{5}{9} times \frac{11}{16} by multiplying numerator times numerator and denominator times denominator.
\frac{55}{144}+\frac{5}{9}\times \frac{5}{16}
Do the multiplications in the fraction \frac{5\times 11}{9\times 16}.
\frac{55}{144}+\frac{5\times 5}{9\times 16}
Multiply \frac{5}{9} times \frac{5}{16} by multiplying numerator times numerator and denominator times denominator.
\frac{55}{144}+\frac{25}{144}
Do the multiplications in the fraction \frac{5\times 5}{9\times 16}.
\frac{55+25}{144}
Since \frac{55}{144} and \frac{25}{144} have the same denominator, add them by adding their numerators.
\frac{80}{144}
Add 55 and 25 to get 80.
\frac{5}{9}
Reduce the fraction \frac{80}{144} to lowest terms by extracting and canceling out 16.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}