Evaluate
75.4272
Factor
\frac{2 \cdot 97 \cdot 3 ^ {5}}{5 ^ {4}} = 75\frac{267}{625} = 75.4272
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\frac{19440}{175}\times 0.679
Expand \frac{194.4}{1.75} by multiplying both numerator and the denominator by 100.
\frac{3888}{35}\times 0.679
Reduce the fraction \frac{19440}{175} to lowest terms by extracting and canceling out 5.
\frac{3888}{35}\times \frac{679}{1000}
Convert decimal number 0.679 to fraction \frac{679}{1000}.
\frac{3888\times 679}{35\times 1000}
Multiply \frac{3888}{35} times \frac{679}{1000} by multiplying numerator times numerator and denominator times denominator.
\frac{2639952}{35000}
Do the multiplications in the fraction \frac{3888\times 679}{35\times 1000}.
\frac{47142}{625}
Reduce the fraction \frac{2639952}{35000} to lowest terms by extracting and canceling out 56.
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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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Matrix
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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}