\frac { 2 } { 5 } \text { de } 30 =
Evaluate
12ed
Differentiate w.r.t. d
12e
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\frac{2\times 30}{5}de
Express \frac{2}{5}\times 30 as a single fraction.
\frac{60}{5}de
Multiply 2 and 30 to get 60.
12de
Divide 60 by 5 to get 12.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
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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
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Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}