Evaluate
\frac{81}{4x}
Differentiate w.r.t. x
-\frac{81}{4x^{2}}
Graph
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\frac{27\times 3}{4x}
Multiply \frac{27}{4} times \frac{3}{x} by multiplying numerator times numerator and denominator times denominator.
\frac{81}{4x}
Multiply 27 and 3 to get 81.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
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