Evaluate
25
Factor
5^{2}
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\frac{1.8}{\left(88-16\right)\times 10^{-3}}
Subtract 3.8 from 5.6 to get 1.8.
\frac{1.8}{72\times 10^{-3}}
Subtract 16 from 88 to get 72.
\frac{1.8}{72\times \frac{1}{1000}}
Calculate 10 to the power of -3 and get \frac{1}{1000}.
\frac{1.8}{\frac{9}{125}}
Multiply 72 and \frac{1}{1000} to get \frac{9}{125}.
1.8\times \frac{125}{9}
Divide 1.8 by \frac{9}{125} by multiplying 1.8 by the reciprocal of \frac{9}{125}.
25
Multiply 1.8 and \frac{125}{9} to get 25.
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y = 3x + 4
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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}