Evaluate
-\frac{3}{10}=-0.3
Factor
-\frac{3}{10} = -0.3
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\frac{\frac{1\times 1}{2\times 4}}{\frac{-5}{12}}
Multiply \frac{1}{2} times \frac{1}{4} by multiplying numerator times numerator and denominator times denominator.
\frac{\frac{1}{8}}{\frac{-5}{12}}
Do the multiplications in the fraction \frac{1\times 1}{2\times 4}.
\frac{\frac{1}{8}}{-\frac{5}{12}}
Fraction \frac{-5}{12} can be rewritten as -\frac{5}{12} by extracting the negative sign.
\frac{1}{8}\left(-\frac{12}{5}\right)
Divide \frac{1}{8} by -\frac{5}{12} by multiplying \frac{1}{8} by the reciprocal of -\frac{5}{12}.
\frac{1\left(-12\right)}{8\times 5}
Multiply \frac{1}{8} times -\frac{12}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{-12}{40}
Do the multiplications in the fraction \frac{1\left(-12\right)}{8\times 5}.
-\frac{3}{10}
Reduce the fraction \frac{-12}{40} to lowest terms by extracting and canceling out 4.
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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}