Evaluate
\frac{189}{2}=94.5
Factor
\frac{3 ^ {3} \cdot 7}{2} = 94\frac{1}{2} = 94.5
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\frac{6+1}{2}\times \frac{4\times 2+1}{2}\times 6
Multiply 3 and 2 to get 6.
\frac{7}{2}\times \frac{4\times 2+1}{2}\times 6
Add 6 and 1 to get 7.
\frac{7}{2}\times \frac{8+1}{2}\times 6
Multiply 4 and 2 to get 8.
\frac{7}{2}\times \frac{9}{2}\times 6
Add 8 and 1 to get 9.
\frac{7\times 9}{2\times 2}\times 6
Multiply \frac{7}{2} times \frac{9}{2} by multiplying numerator times numerator and denominator times denominator.
\frac{63}{4}\times 6
Do the multiplications in the fraction \frac{7\times 9}{2\times 2}.
\frac{63\times 6}{4}
Express \frac{63}{4}\times 6 as a single fraction.
\frac{378}{4}
Multiply 63 and 6 to get 378.
\frac{189}{2}
Reduce the fraction \frac{378}{4} to lowest terms by extracting and canceling out 2.
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}